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Middlesex Co., Connecticut, USAi
Regional Level Types
Middlesex Co.County
ConnecticutState
USACountry

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Key
Locality type:
Largest Settlements:
PlacePopulation
Middletown46,756 (2017)
Cromwell13,750 (2017)
Old Saybrook10,627 (2017)
East Haddam9,042 (2017)
Portland5,862 (2017)
Lake Pocotopaug3,436 (2017)
Other Languages:
French:
Comté de Middlesex, Connecticut, États-Unis
German:
Middlesex County, Connecticut, Vereinigte Staaten
Italian:
Contea di Middlesex, Connecticut, Stati Uniti d'America
Russian:
Мидлсекс, Коннектикут, Соединённые Штаты Америки
Simplified Chinese:
米德爾塞克斯郡, 康乃狄克州, 美国
Spanish:
Condado de Middlesex, Connecticut, Estados Unidos
Albanian:
Middlesex County, Connecticut, Shtetet e Bashkuara të Amerikës
Arabic:
مقاطعة ميدلسكس, كونيتيكت, الولايات المتحدة
Armenian:
Միդլսեքս շրջան, Կոնեկտիկուտ, Ամերիկայի Միացյալ Նահանգներ
Basque:
Middlesex konderria, Connecticut
Bavarian:
Middlesex County, Connecticut, Vaoanigte Stootn
Bishnupriya Manipuri:
মিডলসেক্স কাউন্টি, কানেকটিকাট, তিলপারাষ্ট্র
Bulgarian:
Мидълсекс, Кънектикът, Съединени американски щати
Cebuano:
Middlesex County, Connecticut
Czech:
Middlesex County, Connecticut, Spojené státy americké
Dutch:
Middlesex County, Connecticut, Verenigde Staten
Farsi/Persian:
شهرستان میدلسکس، کنتیکت, کنتیکت, ایالات متحده آمریکا
Hungarian:
Middlesex megye, Connecticut, Amerikai Egyesült Államok
Indonesian:
Wilayah Middlesex, Connecticut, Amerika Serikat
Irish Gaelic:
Contae Middlesex, Connecticut, Stáit Aontaithe Mheiriceá
Japanese:
ミドルセックス郡, コネチカット州, アメリカ合衆国
Low Saxon/Low German:
Middlesex County, Connecticut, USA
Min Dong Chinese:
Middlesex Gông, Connecticut
Norwegian:
Middlesex County, Connecticut, USA
Polish:
Hrabstwo Middlesex, Connecticut, Stany Zjednoczone
Portuguese:
Condado de Middlesex, Connecticut, Estados Unidos
Romanian:
Comitatul Middlesex, Connecticut, Statele Unite ale Americii
Serbian:
Округ Мидлсекс, Конектикат, Сједињене Америчке Државе
Serbo-Croatian:
Middlesex County, Connecticut, Sjedinjene Američke Države
Swedish:
Middlesex County, Connecticut, USA
Turkish:
Middlesex County, Connecticut, Amerika Birleşik Devletleri
Ukrainian:
Міддлсекс, Коннектикут, Сполучені Штати Америки
Urdu:
مڈلسیکس کاؤنٹی، کنیکٹیکٹ, کنیکٹیکٹ, ریاستہائے متحدہ امریکا
Vietnamese:
Quận Middlesex, Connecticut, Chủng Quốc Hoa Kỳ
Waray:
Condado han Middlesex, Connecticut, Estados Unidos
Western Punjabi:
مڈلسکس کاؤنٹی, کنکٹیکٹ, امریکہ


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Mineral List

Mineral list contains entries from the region specified including sub-localities

252 valid minerals. 1 (TL) - type locality of valid minerals. 1 (FRL) - first recorded locality of unapproved mineral/variety/etc. 13 erroneous literature entries.

Rock Types Recorded

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Rock list contains entries from the region specified including sub-localities

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Alphabetical List Tree Diagram

Detailed Mineral List:

Acanthite
Formula: Ag2S
Reference: Januzzi, 1976. Mineral Localities of CT and Southeastern NY State
Actinolite
Formula: ☐{Ca2}{Mg4.5-2.5Fe0.5-2.5}(Si8O22)(OH)2
Localities: Reported from at least 17 localities in this region.
Aegirine
Formula: NaFe3+Si2O6
Colour: greenish
Description: Accompanies black hastingsite
Reference: Schooner, Richard. (circa 1980s), Untitled manuscript on central Connecticut mineralogy.
Albite
Formula: Na(AlSi3O8)
Localities: Reported from at least 76 localities in this region.
Albite var: Cleavelandite
Formula: Na(AlSi3O8)
Localities: Reported from at least 11 localities in this region.
Albite var: Oligoclase
Formula: (Na,Ca)[Al(Si,Al)Si2O8]
Localities: Reported from at least 8 localities in this region.
Albite var: Peristerite
Formula: Na(AlSi3O8)
Reference: Rocks & Minerals (1995) 70:396-409
'Albite-Anorthite Series'
'Alkali Feldspar'
Reference: Philpotts, Anthony R. and Doreen E. Philpotts. (2007), Upward and downward flow in a camptonite dike as recorded by deformed vesicles and the anisotropy of magnetic susceptibility (AMS). Journal of Volcanology and Geothermal Research: 161: 81-94.
Allanite-(Ce)
Formula: {CaCe}{Al2Fe2+}(Si2O7)(SiO4)O(OH)
'Allanite Group'
Formula: {A12+REE3+}{M3+2M32+}(Si2O7)(SiO4)O(OH)
Alleghanyite
Formula: Mn2+5(SiO4)2(OH)2
Colour: reddish
Description: Found by Dick Schooner. A segregation over a foot in diameter, it consisted mainly of reddish alleghanyite and pinkish kutnohorite, with accessories. Unfortunately, only a few specimens were saved.
Reference: Schooner, Richard. (circa 1980s), Untitled manuscript on central Connecticut minerals.
Almandine
Formula: Fe2+3Al2(SiO4)3
Localities: Reported from at least 51 localities in this region.
'Almandine-Spessartine Series'
Amblygonite
Formula: LiAl(PO4)F
Description: Re-identified as montebrasite.
Reference: Schooner, Richard. (1955): 90 Minerals from 1 Connecticut Hill. Rocks & Minerals: 30(7-8): 351-8.; Schooner, Richard. (1958): The Mineralogy of the Portland-East Hampton-Middletown-Haddam Area in Connecticut (With a few notes on Glastonbury and Marlborough). Published by Richard Schooner; Ralph Lieser of Pappy’s Beryl Shop, East Hampton; and Howard Pate of Fluorescent House, Branford, Connecticut.
Analcime
Formula: Na(AlSi2O6) · H2O
Anatase
Formula: TiO2
Habit: crude to perfect elongated bipyramidal
Colour: metallic to honey-brown
Description: Tiny micro-crystals <1 mm crudely to perfectly crystalline and appear metallic on the crystal surfaces, broken ones reveal honey-brown, resinous interior. Associated with cubic pyrite and chlorite crystals in spaces between vuggy albite in host schist Alpine-type openings. Schooner (circa 1985) reports: "A micromount of anatase and rutile crystals, associated with adularia, was once collected at the Strickland quarry. Narrow alpine-type veins are encountered in the schist adjoining the pegmatite."
Reference: Schooner, Richard. (circa 1985), Untitled manuscript on central Connecticut mineralogy.
Anglesite
Formula: PbSO4
Anhydrite
Formula: CaSO4
Habit: tabular
Description: Like at most trap rock localities, anhydrite crystallized early in the secondary paragenesis in fractures and vesicles, but then dissolved away. Tabular molds in later-forming mineral assemblages (quartz, calcite, datolite) reveal its former presence.
Reference: Harold Moritz collection
Annabergite
Formula: Ni3(AsO4)2 · 8H2O
Habit: coatings
Colour: bright to pale green
Description: waxy, pale to bright green coatings on ore-bearing host rocks, particularly around bronze nickeline grains.
Reference: Schooner (1958); Januzzi (1976) Mineral Localities of Connecticut & Southeastern New York State
Annite
Formula: KFe2+3(AlSi3O10)(OH)2
Localities: Reported from at least 37 localities in this region.
Anorthite
Formula: Ca(Al2Si2O8)
Anorthite var: Labradorite
Formula: (Ca,Na)[Al(Al,Si)Si2O8]
Anthophyllite
Formula: ☐{Mg2}{Mg5}(Si8O22)(OH)2
Localities: Reported from at least 8 localities in this region.
'Apatite'
Formula: Ca5(PO4)3(Cl/F/OH)
'Apophyllite'
Aragonite
Formula: CaCO3
Localities: Reported from at least 6 localities in this region.
Arrojadite-(KFe) ?
Formula: {KNa}{Fe2+◻}{Ca}{Na2◻}{Fe2+13}{Al}(PO4)11(HPO4)(OH)2
Description: reported by Dick Schooner, no details in the reference.
Reference: Januzzi (1976) p.234-5.
Arsenolite ?
Formula: As2O3
Arsenopyrite
Formula: FeAsS
Localities: Reported from at least 9 localities in this region.
Arsenopyrite var: Danaite
Formula: (Fe0.90Co0.10)AsS - (Fe0.65Co0.35)AsS
Habit: massive, striated aggregates
Description: The arsenopyrite is not the Co-Ni ore, earlier references to and analyses of "danaite" are probably from confusion with the loellingite ore veins.
Reference: Shannon (1921); Gray (2005)
Augelite
Formula: Al2(PO4)(OH)3
Augite
Formula: (CaxMgyFez)(Mgy1Fez1)Si2O6
Augite var: Fassaite
Formula: (Ca,Na)(Mg,Fe2+,Al,Fe3+,Ti)[(Si,Al)2O6]
Habit: massive granular
Colour: brown
Description: "A striking brown clinopyroxene, with a silky luster, collected at the Strickland quarry, gives an X-ray pattern closer to fassaite than diopside or augite. As learned from similar material, at the railroad cut two miles west, the surficial alteration is a smectite, corroborating the aluminum content. Fassaite also accompanies zoisite, quite abundantly, at ledges immediately west of the Strickland quarry." Schooner (circa 1985).
Reference: Schooner, Richard. (circa 1985), Untitled manuscript on central Connecticut mineralogy.
Augite var: Titanian Augite
Formula: (Ca,Na)(Mg,Ti, Fe,Al,)(Si,Al)2O6
Reference: Philpotts, Anthony R. and Doreen E. Philpotts. (2007), Upward and downward flow in a camptonite dike as recorded by deformed vesicles and the anisotropy of magnetic susceptibility (AMS). Journal of Volcanology and Geothermal Research: 161: 81-94.
Aurichalcite
Formula: (Zn,Cu)5(CO3)2(OH)6
Reference: Januzzi, 1976. Mineral Localities of CT and Southeastern NY State
Autunite
Formula: Ca(UO2)2(PO4)2 · 11H2O
Localities: Reported from at least 17 localities in this region.
Axinite-(Fe)
Formula: Ca2Fe2+Al2BSi4O15OH
Colour: lavender
Description: With tan titanite and pink feldspar.
Reference: Schooner, Richard. (circa 1985), Untitled manuscript on central Connecticut mineralogy.
'Axinite Group' ?
Description: Included in a list copied from Schooner (1958) but with no supporting details. May have occurred in the calc-silicate vein found in the gneissic wall rock.
Reference: Januzzi, 1976. Mineral Localities of CT and Southeastern NY State
Azurite
Formula: Cu3(CO3)2(OH)2
Habit: crust
Colour: light blue
Description: A few scanty crusts of light blue azurite, with malachite and chalcopyrite, on amphibolite (Schooner, circa 1985).
Reference: Schooner, Richard. (circa 1985), Untitled manuscript on central Connecticut mineralogy.
Babingtonite
Formula: Ca2(Fe,Mn)FeSi5O14(OH)
Baryte
Formula: BaSO4
Habit: cleavable masses
Colour: white
Description: White cleavages, up to two inches broad, accompanied tirodite in the spessartine lens at the Jail Hill quarry in Haddam. This was X-rayed for verification.
Reference: Schooner, Richard. (circa 1980s), Untitled manuscript on central Connecticut minerals.
Bastnäsite-(Ce)
Formula: Ce(CO3)F
Habit: thin, irregular plates
Colour: brown, reddish-brown to yellowish-tan
Description: Irregular thin plates, as much as two or three inches across and a half of an inch thick, are intimately associated with massive allanite, white to greenish plagioclase, pink to purple fluorite, chalcopyrite and pyrite. Some may be altered to gray lanthanite?
Reference: Weber, Marcelle H. and Earle C. Sullivan. (1995): CONNECTICUT MINERAL LOCALITY INDEX. Rocks & Minerals (Connecticut Issue), Volume 70, No. 6, p. 403.; Schooner, Richard. (1958): The Mineralogy of the Portland-East Hampton-Middletown-Haddam Area in Connecticut (With a few notes on Glastonbury and Marlborough).; Schooner, Richard. (1961): THE MINERALOGY OF CONNECTICUT.
Bavenite
Formula: Ca4Be2Al2Si9O26(OH)2
Bazzite
Formula: Be3Sc2(Si6O18)
Reference: From Richard Schooner collection, now int he Anthony J. Albini collection, personally collected by Richard and analyzed.
Becquerelite
Formula: Ca(UO2)6O4(OH)6 · 8H2O
Habit: pseudomorphs after uraninite
Colour: yellow
Description: "A soft yellow pseudomorph after a uraninite crystal was X-rayed, and proved to be becquerelite." Schooner (circa 1980s).
Reference: Januzzi, R.E. (1976): Mineral Localities Of Connecticut and Southern New York State. p.234.; Schooner, Richard. (circa 1980s), Untitled manuscript on central Connecticut mineralogy.
Bementite ?
Formula: Mn7Si6O15(OH)8
Description: Reported by Dick Schooner, reference gives no details.
Reference: Januzzi, 1976. Mineral Localities of CT & Southeastern NY State, p.229, 234.
Beraunite ?
Formula: Fe2+Fe3+5(PO4)4(OH)5 · 6H2O
Habit: radiating acicular crystals in micro hemisperical aggregates
Colour: green, but may just be a thin coating of something on messelite
Description: reported by Dick Schooner, no details in the reference. Identified by Van King from posted photographs but an XRD test made in the National Museum Prague (dr. Jiri Sejkora) of the green material with some matrix found "no beraunite but something similar to messelite" and apatite, which are the matrix species.
Reference: Januzzi (1976) p.234-5.
Bertrandite
Formula: Be4(Si2O7)(OH)2
Localities: Reported from at least 14 localities in this region.
Beryl
Formula: Be3Al2(Si6O18)
Localities: Reported from at least 60 localities in this region.
Beryl var: Aquamarine
Formula: Be3Al2Si6O18
Localities: Reported from at least 15 localities in this region.
Beryl var: Goshenite
Formula: Be3Al2(Si6O18)
Beryl var: Heliodor
Formula: Be3Al2(Si6O18)
Localities: Reported from at least 10 localities in this region.
Beryl var: Morganite
Formula: Be3Al2(Si6O18)
Localities: Reported from at least 8 localities in this region.
Beyerite ?
Formula: Ca(BiO)2(CO3)2
Description: Reference includes a list of minerals reportedly found by Dick Schooner in a pegmatite in East Hampton, but with no supporting details.
Reference: Januzzi, 1976. Mineral Localities of CT & SE NY State
'Biotite'
Formula: K(Fe2+/Mg)2(Al/Fe3+/Mg)([Si/Al]Si2O10)(OH/F)2
Localities: Reported from at least 14 localities in this region.
Birnessite
Formula: (Na,Ca)0.5(Mn4+,Mn3+)2O4 · 1.5H2O
Habit: encrustation
Colour: black
Description: "This is one of the manganese oxides identified as a component of the soft black alteration crusts on tephroite, etc."
Reference: Schooner, Richard. (circa 1980s), Untitled manuscript on central Connecticut minerals.
Bismite
Formula: Bi2O3
Bismuthinite
Formula: Bi2S3
Localities: Reported from at least 12 localities in this region.
Bismutite
Formula: (BiO)2CO3
Localities: Reported from at least 9 localities in this region.
Bismutoferrite
Formula: Fe3+2Bi(SiO4)2(OH)
Habit: massive coatings
Colour: green
Description: Associated with bismuthinite and pyrite with secondary bismite, bismutite (some or all may in fact be bismutoferrite) and goethite staining pegmatite matrix.
Reference: Huff, R. C., R. G. Huff, J. Vajdak. (1996), An Occurrence of Bismutoferrite in Portland, Connecticut. Rocks & Minerals: 71(3): 197.; Vajdak, Josef. (1997), New Mineral Finds in 1996, News from Vajdak of Pequa Rare Minerals and Metals. Mineral News: 13:(3): 1,4,5.
Bismutotantalite
Formula: Bi(Ta,Nb)O4
Habit: anhedral
Colour: gray exterior, brown interior
Description: Very small grains to a couple of mm in matrix of albite, muscovite, quartz, elbaite. Analyzed in 2017 by Peter Cristofono and Tom Mortimer.
Reference: Eric Briggs collection
Bityite
Formula: LiCaAl2(AlBeSi2O10)(OH)2
Habit: hexagonal
Colour: white
Description: Schooner (circa 1985) says: "When the Strickland quarry was last active, the author found a boulder of cleavelandite with a small vug of aggregated lustrous white hexagonal-looking crystals with calcite and a trace of lepidolite. It was many years before the mineral was recognized as being a mica! Its unusual X-ray pattern aroused some curiosity, and it was forwarded to Pete J. Dunn at the Smithsonian. He identified it as bityite, and made an analysis by electron microprobe."
Reference: Schooner, Richard. (circa 1985), Untitled manuscript on central Connecticut mineralogy.
Brazilianite
Formula: NaAl3(PO4)2(OH)4
Colour: pink
Description: Schooner (circa 1985) says: "A few masses of Strickland quarry natromontebrasite, from the pollucite zone in the middle eastern wall, halfway down, are composed of intergrown metasomatic or hydrothermal alterations. Pink brazilianite, containing a trace of Mn (analysis by the USGS), is associated with augelite, lacroixite, and hydroxylapatite. This mineral was collected by Charles Thomas, and studied by Mary E. Mrose. Ronald E. Januzzi had earlier collected material, on the old dumps, in which the brazilianite occurs as confused white aggregates, with hydroxylapatite and possibly morinite." Natromontebrasite was discredited in 2007, being a mixture of montebrasite, lacroixite, and wardite.
Reference: Schooner, Richard. (circa 1985) Untitled manuscript on central Connecticut mineralogy.; Handbook of Mineralogy (http://www.handbookofmineralogy.org/pdfs/lacroixite.pdf)
Breithauptite ?
Formula: NiSb
Description: No details in reference, all others cite this one.
Reference: Shepard (1864)
Bustamite
Formula: CaMn2+(Si2O6)
Habit: cleavable masses
Colour: light pink
Description: When the author discovered a large lens of spessartine at the Jail Hill quarry, in the 1950s, a few good specimens of pink "rhodonite" were collected. Two different shades were associated differently, one with spessartine and calcite (or dolomite), the other with tephroite and pyrophanite. X-ray and spectrographic tests have shown the lighter pink mineral to be bustamite, and the darker one pyroxmangite. In some cases, bustamite is intimately intergrown with johannsenite (probably an exsolution product).
Reference: Schooner, Richard. (circa 1980s), Untitled manuscript on central Connecticut minerals.
'Calciomicrolite'
Colour: brown
Description: A single 21mm fragment was analyzed via SEM-EDS and best match is calciomicrolite. Whether this is characteristic of all the abundant micro-crystals posted as "microlite" is uncertain. Zones within it were also analyzed and showed a Ca-Ta oxide with minor Nb (and no Na or Ti)...this could also be microlite, or perhaps calciotantite, which can occur as an inclusion in microlite.
Reference: Adam Berluti collection
Calcite
Formula: CaCO3
Localities: Reported from at least 13 localities in this region.
Caryopilite
Formula: Mn2+3Si2O5(OH)4
Description: This was identified (at the University of Michigan) as a very minor component of "ore" from the manganese pod at the Jail Hill quarry in Haddam.
Reference: Schooner, Richard. (circa 1980s), Untitled manuscript on central Connecticut minerals.
Cassiterite
Formula: SnO2
Cerite-(Ce) ?
Formula: (Ce,Ca)9(Mg,Fe)(SiO4)3(HSiO4)4(OH)3
Description: Reference includes a list of minerals reportedly found by Dick Schooner in a pegmatite in East Hampton, but with no supporting details.
Reference: Januzzi, 1976. Mineral Localities of CT and Southeastern NY State, p.234
Cerussite
Formula: PbCO3
'Chabazite'
Localities: Reported from at least 8 localities in this region.
'Chabazite var: Phacolite'
Reference: Kevin Czaja Collection, Ex: Marcelle Weber Coll: m1236
Chalcopyrite
Formula: CuFeS2
Localities: Reported from at least 22 localities in this region.
'Chlorite Group'
Localities: Reported from at least 12 localities in this region.
'Chlorophyllite'
Habit: coarse, micaceous pseudomorphs after cordierite
Colour: green
Description: Term used loosely to describe the micaceous mineral of the cordierite pseudomorphs.
Reference: Dana, 1844. A System of Mineralogy, 2nd ed., 306
Chrysoberyl
Formula: BeAl2O4
Chrysocolla
Formula: Cu2-xAlx(H2-xSi2O5)(OH)4 · nH2O
Reference: Januzzi, 1976. Mineral Localities of CT and Southeastern NY State
Chrysotile
Formula: Mg3(Si2O5)(OH)4
Description: Thoroughly unreasonable guess.
Reference: Januzzi, Ronald E. (1976): Mineral Localities of Connecticut and Southeastern New York State (Taylor Assoc./Mineralogical Press).
Claudetite ?
Formula: As2O3
Description: According to an unconfirmed report by Schooner (circa 1980s), associated with arsenopyrite were "a few soft, transparent, gypsum-like plates" of claudetite.
Reference: Schooner, Richard. (circa 1980s), Untitled manuscript on central Connecticut mineralogy.
Clinozoisite
Formula: {Ca2}{Al3}(Si2O7)(SiO4)O(OH)
Description: In the host metamorphic rocks.
Reference: Januzzi, Ronald E. (1976): Mineral Localities of Connecticut and Southeastern New York State (Taylor Assoc./Mineralogical Press).
Cobaltite ?
Formula: CoAsS
Description: Reported by Parker Cleaveland in 1822. No one else appears to have found the mineral there.
Reference: Schooner (1958)
Columbite-(Fe)
Formula: Fe2+Nb2O6
Localities: Reported from at least 19 localities in this region.
'Columbite-(Fe)-Columbite-(Mn) Series'
Localities: Reported from at least 19 localities in this region.
'Columbite-Tantalite'
Cookeite
Formula: (Al2Li)Al2(AlSi3O10)(OH)8
Localities: Reported from at least 6 localities in this region.
'Copiapite Group'
Reference: Kevin Czaja Collection
Cordierite
Formula: (Mg,Fe)2Al3(AlSi5O18)
Localities: Reported from at least 9 localities in this region.
Covellite
Formula: CuS
Reference: Rocks & Min.: 70:403
Crandallite ?
Formula: CaAl3(PO4)(PO3OH)(OH)6
Description: Schooner (1955) reports it "as microscopic crystals associated with bertrandite" found by Gunnar Bjareby. However, he does not mention it in any of his subsequent writings on the area.
Reference: Schooner, Richard. (1955): 90 Minerals from 1 Connecticut Hill. Rocks & Minerals: 30(7-8): 351-8.
Cronstedtite
Formula: Fe2+2Fe3+((Si,Fe3+)2O5)(OH)4
Habit: radial groups of flattened crystals
Colour: greenish-brown to almost black
Description: A drab greenish-brown to almost black mineral, abundantly associated with grunerite, siderite, and marcasite, was identified as chamosite. Careful restudy of X-ray data indicates cronstedtite as a better fit.
Reference: Schooner, Richard. (circa 1985), Untitled manuscript on central Connecticut mineralogy.
Cummingtonite
Formula: ☐{Mg2}{Mg5}(Si8O22)(OH)2
Cuprobismutite
Formula: Cu8AgBi13S24
Habit: massive, coatings
Description: Associated with bismuthinite and pyrite with secondary bismite, bismutite (some or all may in fact be bismutoferrite) and goethite staining pegmatite matrix.
Reference: Vajdak, Josef. (1997), New Mineral Finds in 1996, News from Vajdak of Pequa Rare Minerals and Metals. Mineral News: 13:(3): 1,4,5.
Datolite
Formula: CaB(SiO4)(OH)
Reference: Rocks & Minerals (1995) 70:396-409; Rocks & Minerals (1995) 70:396-409; Brunet (1980)
Diadochite
Formula: Fe3+2(PO4)(SO4)(OH) · 5H2O
Habit: coatings and micro globules
Colour: orange
Description: Orange coatings on triphylite, messelite, and other related phosphates
Reference: Schooner (1961); Januzzi (1976) p. 234.
Dickinsonite-(KMnNa)
Formula: {KNa}{Mn2+◻}{Ca}{Na3}{Mn2+13}{Al}(PO4)12(OH)2
Habit: flakes, coating on altered lithiophilite
Colour: olive green
Description: Schooner (1955): "Little scales of the rare phosphate are seen on a few specimens."
Reference: Schairer, J. F. (1926): Lithiophilite and Other Rare Phosphates from Portland, Connecticut. American Mineralogist: 11(4): 101-104.; Schooner, Richard. (1955): 90 Minerals from 1 Connecticut Hill. Rocks & Minerals: 30(7-8): 351-8.
Dickite
Formula: Al2(Si2O5)(OH)4
Habit: massive
Colour: bluish-gray
Description: nepheline-sodalite rock has been extensively replaced by fine-grained bluish-gray dickite and white natrolite.
Reference: Schooner, Richard. (circa 1980s), Untitled manuscript on central Connecticut mineralogy.
Diopside
Formula: CaMgSi2O6
Localities: Reported from at least 11 localities in this region.
Dolomite
Formula: CaMg(CO3)2
Dravite
Formula: Na(Mg3)Al6(Si6O18)(BO3)3(OH)3(OH)
Elbaite
Formula: Na(Li1.5Al1.5)Al6(Si6O18)(BO3)3(OH)3(OH)
Localities: Reported from at least 10 localities in this region.
Enstatite
Formula: MgSiO3
Habit: elongated prismatic
Colour: dark brown-black
Description: dark but translucent, elongated crystals frozen in actinolite matrix, micro-crystals in tiny voids
Reference: Lundgren, Lawrence, Jr. (1963): The Bedrock Geology of the Deep River Quadrangle. State Geological and Natural History Survey of Connecticut. Quadrangle Report No. 13: 19-21.
Eosphorite
Formula: Mn2+Al(PO4)(OH)2 · H2O
Description: Rarely occurs with rhodochrosite and other secondary alterations of lithiophilite nodules.
Reference: Schooner, Richard. (circa 1985), Untitled manuscript on central Connecticut mineralogy.
Epidote
Formula: {Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
Localities: Reported from at least 16 localities in this region.
Epsomite
Formula: MgSO4 · 7H2O
Habit: efflorescence
Description: Schooner (1958): "occurs very sparingly with pickeringite, in efflorescences on protected schist ledges in the cut above the Strickland Quarry. It is distinguished from pickeringite by its different taste… the same as that of artificial Epsom salt."
Reference: Schooner, Richard. (1958): The Mineralogy of the Portland-East Hampton-Middletown-Haddam Area in Connecticut (With a few notes on Glastonbury and Marlborough). Published by Richard Schooner; Ralph Lieser of Pappy’s Beryl Shop, East Hampton; and Howard Pate of Fluorescent House, Branford, Connecticut.
Erythrite
Formula: Co3(AsO4)2 · 8H2O
Habit: earthy incrustation or delicate needles
Colour: red
Description: Formed from the weathering of Co-rich loellingite. "Eugene Franckfort reported that the face of one lode, opened more than a century ago, was covered with, abundant erythrite crystals… as fine as any which he had seen in his native Europe." (Schooner 1958). "The Francfort mineral collection [at Wesleyan University] contains some excellent samples of erythrite from Bucks Shaft" (Gray 2005). It was common during the mining, but very scarce now. A small flake was tested in concentrated HCl and it turned the solution blue, indicating erythrite.
Reference: Schooner (1958); Gray (2005)
Euclase ?
Formula: BeAl(SiO4)(OH)
Colour: colorless
Description: Etched, elongated microcrystals with rhombic cross-section and wedge-shaped terminations. With secondary quartz and cookeite coating a pocket quartz.
Reference: Harold Moritz collection
Eucryptite
Formula: LiAlSiO4
Description: Speculation by Schooner.
Reference: Schooner, Richard. (1958): The Mineralogy of the Portland-East Hampton-Middletown-Haddam Area in Connecticut (With a few notes on Glastonbury and Marlborough). Published by Richard Schooner; Ralph Lieser of Pappy’s Beryl Shop, East Hampton; and Howard Pate of Fluorescent House, Branford, Connecticut.; Schooner, Richard. (circa 1985), Untitled manuscript on central Connecticut mineralogy.
Euxenite-(Y)
Formula: (Y,Ca,Ce,U,Th)(Nb,Ta,Ti)2O6
Description: Reference by Januzzi (1976) to this mineral being found by Schooner in "Portland" correlates only with a report by Schooner (circa 1985) from the Hale Quarry in Portland. Schooner makes no mention if it from Strickland in his various comprehensive publications, especially his last, Schooner (circa 1985).
Reference: Januzzi, Ronald E. (1976): Mineral Localities of Connecticut and Southeastern New York State (Taylor Assoc./Mineralogical Press): 234-5.
'Fahlunite'
Formula: (Mg,Fe)Al2Si3O10 · 2H2O
Fairfieldite
Formula: Ca2Mn2+(PO4)2 · 2H2O
'Fayalite-Forsterite Series'
'Feldspar Group'
'Feldspar Group var: Perthite'
Ferri-ghoseite
Formula: ☐[Mn2+Na][Mg4Fe3+]Si8O22(OH)2
Habit: lamellar or bladed
Colour: tan or green
Description: Reported by Dick Schooner as "Tirodite", reference below provides no details. An XRD analysis of a sample labeled "tirodite" from Dick Schooner's collection could not differentiate it from actinolite. However, Schooner (circa 1980s) reports: "Tan or green tirodite, lamellar and bladed, was rather common at the Jail Hill quarry, usually with only spessartine or barite. Masses two inches across have been preserved. A few little silky-fibrous tufts proved to be tirodite, also. This material was studied at the University of Michigan."
Reference: Januzzi (1976) p.229, 235; Schooner, Richard. (circa 1980s), Untitled manuscript on central Connecticut minerals.
Ferrimolybdite
Formula: Fe2(MoO4)3 · nH2O
Ferrisicklerite
Formula: Li1-x(Fe3+xFe2+1-x)PO4
Description: sparingly with the triphylite
Reference: Schooner (1958)
Fluorapatite
Formula: Ca5(PO4)3F
Localities: Reported from at least 40 localities in this region.
Fluorapatite var: Mn-bearing Fluorapatite
Formula: (Ca,Mn2+)5(PO4)3(F,Cl,OH) or Ca5([P,Mn5+]O4)3(F,Cl,OH)
Fluorapophyllite-(K)
Formula: KCa4(Si8O20)(F,OH) · 8H2O
Habit: elongated prisms modified by pyramids and pinacoids or tabular dominated by pinacoids
Colour: colorless, pale pink to white or pale yellow (tabular aggregates)
Description: In fractures typically with calcite and datolite, crystals usually small <1 cm, as individual prismatic or botryoidal aggregates of tabular crystals that resemble typical prehnite aggregates except for their pale yellow color.
Reference: Harold Moritz collection
Fluorite
Formula: CaF2
Localities: Reported from at least 14 localities in this region.
Fluorite var: Chlorophane
Formula: CaF2
Foitite
Formula: (□,Na)(Fe2+2Al)Al6(Si6O18)(BO3)3(OH)3OH
Fourmarierite
Formula: Pb(UO2)4O3(OH)4 · 4H2O
Habit: pseudomorphs after uraninite
Colour: reddish
Description: "In a study at Harvard University, in 1964, both fourmarierite and vandendriesscheite were identified, by X-ray diffraction, as components of hard "gummite" pseudomorphs after uraninite from the Rock Landing quarry. Fourmarierite is reddish; vandendriesscheite, yellow. The material came from the Charles Thomas collection." Schooner (circa 1980s).
Reference: Schooner, Richard. (circa 1980s), Untitled manuscript on central Connecticut mineralogy.
Gahnite
Formula: ZnAl2O4
Localities: Reported from at least 7 localities in this region.
Galaxite ?
Formula: Mn2+Al2O4
Colour: dark green
Description: A dusting of a dark green mineral is seen in alleghanyite-kutnohorite specimens from the Jail Hill quarry. X-ray diffraction of a mixed sample shows faint peaks that correspond rather well to galaxite.
Reference: Schooner, Richard. (circa 1980s), Untitled manuscript on central Connecticut minerals.
Galena
Formula: PbS
'Garnet Group'
Formula: X3Z2(SiO4)3
Localities: Reported from at least 14 localities in this region.
Gedrite
Formula: ☐{Mg2}{Mg3Al2}(Al2Si6O22)(OH)2
Gehlenite
Formula: Ca2Al(AlSiO7)
Habit: tetragonal prisms
Colour: light brown
Description: Tiny crystals in lens-like bodies of calc-silicate rock in the host Collins Hill Formation. Optical and X-ray study by Waldemar T. Schaller at the USGS indicate gehlenite, associated with diopside, grossular, wollastonite, and spurrite.
Reference: Schooner, Richard. (circa 1985), Untitled manuscript on central Connecticut mineralogy.
Gersdorffite
Formula: NiAsS
Habit: grains
Description: "An analysis by Fairchild, published in 1931, and quoted in the Seventh Edition of “Dana’s System of Mineralogy”, gave: iron 3.9, cobalt 0.7, nickel 31.6, antimony 9.1, arsenic 34.9, sulfur 17.1, and bismuth 0.4%" (Schooner 1958); with the ore minerals at Shepard's Lode (Gray 2005).
Reference: Schooner (1958); Gray (2005)
'Gmelinite' ?
Description: This mineral is unknown from Connecticut trap rock. Likely confusion with chabazite variety phacolite.
Reference: Weber, Marcelle H. and Earle C. Sullivan. (1995): Connecticut Mineral Locality Index. Rocks & Minerals (Connecticut Issue): 70 (6): 403.
Gobbinsite
Formula: Na5(Si11Al5)O32 · 11H2O
Description: Asociated with foitite grading into elbaite, wodginite, cassiterite, and quartz.
Reference: Jarnot, Bruce M. (2011): Letters: Connecticut Update. Rocks & Minerals: 86(4): 299.
Goethite
Formula: α-Fe3+O(OH)
Localities: Reported from at least 12 localities in this region.
Gold
Formula: Au
Habit: micron to mm-sized grains
Description: "Native gold, generally as micron sized grains, is found, along with pyrite and chalcopyrite, in a network of thin fractures and veins cutting the arsenopyrite. Although much of the gold is very fine grained and is difficult to see, even with a strong hand lens, grains up to a mm are present" Gray (2005)
Reference: Chomiak, B. A. (1989): An integrated study of the structure and mineralization at Great Hill, Cobalt, Connecticut [M.S. thesis]: University of Connecticut, Storrs, Connecticut, 288 p.
Gonnardite
Formula: (Na,Ca)2(Si,Al)5O10 · 3H2O
Reference: Tschernich, R. (1992): Zeolites of the World, p.114
Goslarite ?
Formula: ZnSO4 · 7H2O
Habit: efflorescence
Colour: white
Description: "A thin coating of white goslarite, with a characteristic sharp taste, was found on the protected bottom of a pegmatite boulder, containing sphalerite and pyrite, on a Strickland quarry dump. Such material is, of course, ephemeral, because of its hydrosoluble nature." (Schooner, circa 1985).
Reference: Schooner, Richard. (circa 1985), Untitled manuscript on central Connecticut mineralogy.
Graftonite ?
Formula: Fe2+Fe2+2(PO4)2
Description: Reported by Schooner (circa 1980s) as occurring in pieces from the Charles Thomas collection, along with triphylite, scorzalite, siderite, fairfieldite, augelite. Possible they could have come from the Palermo mine.
Reference: Schooner, Richard. (circa 1980s), Untitled manuscript on central Connecticut mineralogy.
Graphite
Formula: C
Localities: Reported from at least 6 localities in this region.
Grayite
Formula: (Th,Pb,Ca)(PO4) · H2O
Reference: Fred Davis - home.att.net/~fedavis/Main/Page_109.html
Greenockite
Formula: CdS
Grossular
Formula: Ca3Al2(SiO4)3
Localities: Reported from at least 10 localities in this region.
Groutite
Formula: Mn3+O(OH)
Grunerite
Formula: ☐{Fe2+2}{Fe2+5}(Si8O22)(OH)2
Description: siderite layers up to 1/2 inch were common in a vein of marcasite, cronstedtite, grunerite, and quartz (Schooner, circa 1985).
Reference: Schooner, Richard. (circa 1985), Untitled manuscript on central Connecticut mineralogy.
'Gummite'
Gypsum
Formula: CaSO4 · 2H2O
Localities: Reported from at least 6 localities in this region.
Gypsum var: Selenite
Formula: CaSO4 · 2H2O
Reference: Sean Flanagan Specimen
'Halloysite'
Formula: Al2(Si2O5)(OH)4
Hastingsite
Formula: {Na}{Ca2}{Fe2+4Fe3+}(Al2Si6O22)(OH)2
Habit: subhedral prismatic
Colour: black
Reference: Schooner, Richard. (circa 1980s), Untitled manuscript on central Connecticut mineralogy.
Hematite
Formula: Fe2O3
Localities: Reported from at least 6 localities in this region.
Hemimorphite
Formula: Zn4Si2O7(OH)2 · H2O
Reference: Januzzi, 1976. Mineral Localities of CT and Southeastern NY State
Herderite
Formula: CaBePO4(F,OH)
Description: undoubtedly hydroxylherderite as there is still but one or two chemically verified herderite specimen in the world and even the so-called type locality for true herderite does not have the species by modern chemical analyses. "Chemical analysis of herderite, collected by the author, at the State Forest Mine in East Hampton, Connecticut, indicate that it is the hydroxyl variety" (Januzzi 1994).
Reference: Januzzi (1994); Schooner (1958)
Heterosite
Formula: (Fe3+,Mn3+)PO4
'Heulandite subgroup'
Reference: Kevin Czaja Collection, Ex: Marcelle Weber Coll: m2405. 4-22-65
Hexahydrite ?
Formula: MgSO4 · 6H2O
Description: Discovered by Richard Schooner as an "efflorescence on schist" at an undisclosed Portland location, reported by Januzzi, but details lacking.
Reference: Januzzi, Ronald. (1976): Mineral Localities of CT and Southeastern NY State, p.234
'Hornblende'
Localities: Reported from at least 7 localities in this region.
Hureaulite
Formula: (Mn,Fe)5(PO4)2(HPO4)2 · 4H2O
Habit: massive, etched
Colour: red-brown, orange-red to pink
Description: massive, earthy to vitreous, translucent, etched, cellular alteration of lithiophilite, with white hydroxylapatite and sicklerite. Confirmed again in 2014 using Raman spectroscopy, by Paul Bartholomew, U. New Haven.
Reference: Schairer, J. F. (1926): Lithiophilite and Other Rare Phosphates from Portland, Connecticut. American Mineralogist: 11(4): 101-104.; Schooner, Richard. (1955): 90 Minerals from 1 Connecticut Hill. Rocks & Minerals: 30(7-8): 351-8.; Schooner, Richard. (circa 1985), Untitled manuscript on central Connecticut mineralogy.
Hydrokenoelsmoreite ?
Formula: 2W2O6(H2O)
Description: Reference includes a list of minerals reportedly found by Dick Schooner in a quartz vein in East Hampton, but with no supporting details. The mineral is listed as "ferritungstite".
Reference: Januzzi, 1976. Mineral Localities of CT and Southeastern NY State, p.234
Hydrokenoelsmoreite var: Ferritungstite ?
Reference: Reported by Dick Schooner (not analyzed?)
Hydroxylapatite
Formula: Ca5(PO4)3(OH)
Hydroxylherderite
Formula: CaBe(PO4)(OH,F)
Hydrozincite
Formula: Zn5(CO3)2(OH)6
Reference: Januzzi, 1976. Mineral Localities of CT and Southeastern NY State
Ilmenite
Formula: Fe2+TiO3
Localities: Reported from at least 7 localities in this region.
Ilmenite var: Manaccanite
Formula: Fe2+TiO3
Reference: 5th and 6th Annual Reports of the Curators of the museum of Wesleyan University, Middletown, 1877.
'Indicolite'
Formula: A(D3)G6(T6O18)(BO3)3X3Z
Ishikawaite
Formula: U4+Fe2+Nb2O8
Habit: tabular
Colour: black with brown coating
Description: metamict crystals with obsidian-like conchoidal fracture
Reference: Hanson, S., Jarnot, B. M., Falster, A. U., Simmons, W. B., and Nizamoff, J. W., 2003, Nb-Ta-Ti Oxide Minerals from Two Pegmatites of the Middletown Area, Connecticut, Program with Abstracts, v.30, p. 11.; Hanson, S. L., Jarnot, B. M., Falster, A. U., Simmons, W. B., Nizamoff, J. W.: (2003) "Nb-Ta-Ti Oxide Minerals from Two Pegmatites of the Middletown Area, Connecticut," Rochester Mineral Symposium Abstracts, p. 11-12.
Ixiolite
Formula: (Ta,Nb,Sn,Fe,Mn)4O8
Ixiolite var: Wolframoixiolite
Formula: (Nb,W,Ta,Fe,Mn,Nb)2O4
Habit: acicular
Colour: black
Description: Elongated, thin crystals in albite/quartz/annite matrix, with unknown translucent, orange-red coating.
Reference: Former Richard Schooner collection
Jacobsite
Formula: Mn2+Fe3+2O4
Description: "Specimens of tephroite from the Jail Hill quarry contain magnetic grains, shown (by X-ray and microprobe study at the University of Michigan) to be jacobsite. The material ranges from ferroan jacobsite to manganoan magnetite, within individual grains. A few specimens show it rather abundantly." Specimens are in the Harvard Mineralogical Museum.
Reference: Schooner, Richard. (circa 1980s), Untitled manuscript on central Connecticut minerals.
Jarosite ?
Formula: KFe3+ 3(SO4)2(OH)6
Habit: Coatings
Description: Reported by Dick Schooner as "Coatings on schist" in Januzzi (1976) p. 234.
Reference: Januzzi (1976) Mineral Localities of Connecticut & Southeastern New York State, p 234-5.
Johannite
Formula: Cu(UO2)2(SO4)2(OH)2 · 8H2O
Johannsenite ?
Formula: CaMn2+Si2O6
Colour: tan or gray
Description: Fibrous tan or gray johannsenite is intergrown with pink bustamite in a few specimens from the Jail Hill quarry. The X-ray pattern indicates a clinopyroxene, and spectrographic analysis shows calcium and manganese as the principal cations of both minerals. The association is entirely characteristic.
Reference: Schooner, Richard. (circa 1980s), Untitled manuscript on central Connecticut minerals.
Kaersutite
Formula: {Na}{Ca2}{Mg3AlTi}(Al2Si6O22)O2
Reference: Philpotts, Anthony R. and Doreen E. Philpotts. (2007), Upward and downward flow in a camptonite dike as recorded by deformed vesicles and the anisotropy of magnetic susceptibility (AMS). Journal of Volcanology and Geothermal Research: 161: 81-94.
Kaolinite
Formula: Al2(Si2O5)(OH)4
Localities: Reported from at least 7 localities in this region.
'K Feldspar'
'K Feldspar var: Adularia'
Formula: KAlSi3O8
Kutnohorite
Formula: CaMn2+(CO3)2
Habit: massive
Colour: pink
Description: "Light pink kutnohorite (verified at the University of Michigan) is the matrix for abundant reddish grains of alleghanyite (or an alleghanyite-like mineral) in the material collected, around 1960, at the Jail Hill quarry. Tephroite, jacobsite, and pyrophanite are also associated."
Reference: Januzzi (1976) p. 229, 235; Schooner, Richard. (circa 1980s), Untitled manuscript on central Connecticut minerals.
Kyanite
Formula: Al2(SiO4)O
Localities: Reported from at least 12 localities in this region.
Lacroixite
Formula: NaAl(PO4)F
Habit: granular
Colour: pale yellow
Description: From Schooner (circa 1985): "Mary E. Mrose [USGS] studied some exceptional material collected at the Strickland quarry by Charles Thomas, when the last sporadic work was done in the non-flooded pit. Lacroixite formed rather granular pale yellow areas in a mixture of augelite, brazilianite, and hydroxylapatite (?), replacing natromontebrasite. Her paper redefined the species, which had been in question." Natromontebrasite was discredited in 2007, being a mixture of montebrasite, lacroixite, and wardite.
Reference: Schooner, Richard (circa 1985) Untitled manuscript on central Connecticut mineralogy.; Handbook of Mineralogy (http://www.handbookofmineralogy.org/pdfs/lacroixite.pdf).
'Lanthanite' ?
Colour: gray
Description: A possible weathering product of the basnaesite.
Reference: Schooner, Richard. (1958): The Mineralogy of the Portland-East Hampton-Middletown-Haddam Area in Connecticut (With a few notes on Glastonbury and Marlborough).
Larnite
Formula: Ca2SiO4
Colour: grayish
Description: Schooner (circa 1985): "One of the calc-silicate pods at the Strickland quarry contained the usual fine-grained diopside, grossularite, and wollastonite, with the addition of a 1/2 inch zone of grayish cleavable larnite, giving a distinct X-ray pattern." Studied by Waldemar T. Schaller of USGS.
Reference: Schooner, Richard. (circa 1985), Untitled manuscript on central Connecticut mineralogy.
Laueite
Formula: Mn2+Fe3+2(PO4)2(OH)2 · 8H2O
Habit: microscopic elongated prisms
Colour: red-orange
Description: "Tiny orange crystals are associated with strunzite fibers in vugs of altered messelite, with siderite and mitridatite" (Schooner 1961)
Reference: Schooner (1958, 1961): Rocks & Min.: 70:403
Laumontite
Formula: CaAl2Si4O12 · 4H2O
'Lepidolite'
Localities: Reported from at least 10 localities in this region.
Liandratite
Formula: U(Nb,Ta)2O8
Habit: massive
Colour: yellow
Description: Associated with petscheckite and columbite.
Reference: Personal collection of Fred E Davis, and EDS analysis
'Limonite'
Formula: (Fe,O,OH,H2O)
Localities: Reported from at least 17 localities in this region.
Linarite ?
Formula: PbCu(SO4)(OH)2
Colour: bright blue
Description: From Schooner (circa 1980s): "At the exposed galena-sphalerite-calcite veins near the lead mine tunnels, between River Road and the Connecticut River, seams and vugs contain traces of secondary minerals. One of them is linarite, as bright blue microcrystals."
Reference: Schooner, Richard. (circa 1980s), Untitled manuscript on central Connecticut mineralogy.
Litharge
Formula: PbO
Colour: tan
Description: From Schooner (circa 1980s): "Massicot was the most abundant of the lead oxides from the now-collapsed tunnel of the lead mine nearest the river. X-ray study, however, showed the presence of minor litharge. A sample of weathered galena, picked up on the cobalt mine dump below Great Hill, had a rather thick tan crust. It gave a very good X-ray pattern of litharge."
Reference: Schooner, Richard. (circa 1980s), Untitled manuscript on central Connecticut mineralogy.
Lithiophilite
Formula: LiMn2+PO4
'Lithiophilite-Triphylite Series'
Description: Confusion with triplite and elbaite.
Reference: António Manuel Ináçio Martins
Löllingite
Formula: FeAs2
Ludlamite
Formula: Fe2+3(PO4)2 · 4H2O
Habit: cleavable masses
Colour: pale green
Description: "Light green cleavages were associated with siderite and triphylite. It also formed thin borders along messelite areas in hydrothermally altered triphylite." (Schooner 1961)
Reference: Schooner (1961)
Maghemite
Formula: (Fe3+0.670.33)Fe3+2O4
Habit: massive
Colour: brown
Description: Alteration of magnetite found on biotite gneiss in the rock quarry uphill from the pegmatite. Referenced and photographed by Weissmand and Nikischer of Excalibur Mineral Corp. Harold Moritz collection contains a similar specimen purchased from them.
Reference: Weissman, Jeffrey G. and Anthony Nikischer. (2005): PHOTOGRAPHIC GUIDE TO MINERAL SPECIES. 2nd edition. CD distributed by Excalibur Mineral Corporation.
Magnesio-hornblende
Formula: ☐{Ca2}{Mg4Al}(AlSi7O22)(OH)2
Magnetite
Formula: Fe2+Fe3+2O4
Localities: Reported from at least 23 localities in this region.
Malachite
Formula: Cu2(CO3)(OH)2
'Manganese Oxides'
'Manganese Oxides var: Manganese Dendrites'
Manganite
Formula: Mn3+O(OH)
Marcasite
Formula: FeS2
Massicot
Formula: PbO
Colour: yellowish
Description: From Schooner (circa 1980s)" "Some rich specimens, showing soft yellowish massicot in cellular quartz, derived from the alteration of galena, were found in the last lead mine tunnel toward the river. X-ray study indicates a mixture of massicot and litharge, with massicot predominating."
Reference: Schooner, Richard. (circa 1980s), Untitled manuscript on central Connecticut mineralogy.
Masutomilite
Formula: (K,Rb)(Li,Mn3+,Al)3(AlSi3O10)(F,OH)2
Reference: Schooner, Richard. (circa 1985), Untitled manuscript on central Connecticut mineralogy.
Meionite
Formula: Ca4Al6Si6O24CO3
Reference: Rocks & Minerals (1995) 70:396-409
Melanterite
Formula: Fe2+(H2O)6SO4 · H2O
Localities: Reported from at least 9 localities in this region.
Messelite
Formula: Ca2Fe2+(PO4)2 · 2H2O
Habit: massive curved, lamellar aggregates, acicular microcrystals
Colour: white to tan, sometimes a green coating of an unknown.
Description: "Many solid white or tan masses, with a curved lamellar structure, were collected; some were two inches across. The messelite was intergrown with siderite, or embedded in triphylite. Distinct crystals, with a pearly luster, were noted in vugs of the massive mineral." Schooner (1961). Associated with triphylite, siderite, strunzite, laueite, mitridatite, ludlamite, vivianite. A green mineral thought to be beraunite was tested by XRD (with some matrix) at the National Museum Prague (dr. Jiri Sejkora) and found to be "no beraunite but something similar to messelite". The green may be only a coating.
Reference: Schooner (1961)
Meta-autunite
Formula: Ca(UO2)2(PO4)2 · 6-8H2O
Localities: Reported from at least 17 localities in this region.
Metatorbernite
Formula: Cu(UO2)2(PO4)2 · 8H2O
Localities: Reported from at least 8 localities in this region.
Microcline
Formula: K(AlSi3O8)
Localities: Reported from at least 72 localities in this region.
Microcline var: Amazonite
Formula: K(AlSi3O8)
Microcline var: Hyalophane
Formula: (K,Ba)[Al(Si,Al)Si2O8]
Habit: prismatic
Colour: pale yellow-white
Description: "A few nicely formed yellowish hyalophane crystals (adularia type) were found in vugs of spessartine crystals at the Jail Hill quarry in Haddam, associated with a lens of manganese silicates and oxides. Spectrographic analysis indicates the hyalophane is manganoan." Schooner (circa 1985). Crystals reach about 1 cm.
Reference: Schooner, Richard. (circa 1980s), Untitled manuscript on central Connecticut minerals.
'Microlite Group'
Formula: A2-mTa2X6-wZ-n
Localities: Reported from at least 13 localities in this region.
'Microlite Group var: Uranmicrolite (of Hogarth 1977)'
Habit: dipyramidal
Colour: very dark brown to black
Description: Reportedly analyzed by Schooner. Identified by Bruce Jarnot (personal communication 2011) by: 1) euhedral microlite dipyramid crystal form, 2) strong uranium peak in its EDX spectrum, 3) strongly radioactive. Associations and properties of anhedral grains are similar to that of analyzed tanteuxenite-(Y) and could prove to be this mineral.
Reference: Harold Moritz collection. Former Bruce Jarnot collection.
Mimetite
Formula: Pb5(AsO4)3Cl
Reference: Januzzi, 1976. Mineral Localities of CT and Southeastern NY State
Minium
Formula: Pb3O4
Colour: orange-red
Description: From Schooner (circa 1980s): "Dull orange-red minium is one of the lead oxides found at the lowest of the tunnels between River Road and the Connecticut River, in Middletown. This material did not yield the good X-ray pattern of the other lead oxides, massicot, litharge, and plattnerite. It is assumed to be fine-grained or impure. Interestingly, no hematite peaks were seen."
Reference: Schooner, Richard. (circa 1980s), Untitled manuscript on central Connecticut mineralogy.
Mitridatite
Formula: Ca2Fe3+3(PO4)3O2 · 3H2O
Molybdenite
Formula: MoS2
Localities: Reported from at least 19 localities in this region.
'Monazite'
Monazite-(Ce)
Formula: Ce(PO4)
Localities: Reported from at least 10 localities in this region.
Montebrasite
Formula: LiAl(PO4)(OH)
Montmorillonite
Formula: (Na,Ca)0.33(Al,Mg)2(Si4O10)(OH)2 · nH2O
Moraesite
Formula: Be2(PO4)(OH) · 4H2O
Morinite ?
Formula: NaCa2Al2(PO4)2(OH)F4 · 2H2O
Description: Unconfirmed. According to Schooner (circa 1985): "A few masses of Strickland quarry natromontebraesite, from the pollucite zone in the middle eastern wall, halfway down, are composed of intergrown metasomatic or hydrothermal alterations. Pink brazilianite, containing a trace of Mn (analysis by the USGS), is associated with augelite, lacroixite, and hydroxylapatite. This mineral was collected by Charles Thomas, and studied by Mary E. Mrose [USGS]. Ronald E. Januzzi had earlier collected material, on the old dumps, in which the brazilianite occurs as confused white aggregates, with hydroxylapatite and possibly morinite."
Reference: Schooner, Richard. (circa 1985), Untitled manuscript on central Connecticut mineralogy.
Muscovite
Formula: KAl2(AlSi3O10)(OH)2
Localities: Reported from at least 71 localities in this region.
Muscovite var: Schernikite (FRL)
Formula: KAl2(AlSi3O10)(OH)2
Habit: Rhombic fibers in parallel or twin-position
Colour: white, tan, pink
Description: A variety of pink fibrous muscovite so far unique to Gillette, as described by Scovil (1992): "Bowman (1902) goes into great detail in his analysis of muscovite and lepidolite from Gillette. The two form interesting overgrowths, with pale green muscovite at the center. This core is surrounded by a sharply defined zone of pink lepidolite. The lepidolite was subsequently overgrown by pink fibrous muscovite. The fibers are rhombic in cross section and are in parallel or twin-position so that the mass can be cleaved as if a single crystal...The fibrous muscovite also occurs as inclusions in quartz crystals. The muscovite starts at a pin point in the quartz crystals interior and becomes a divergent sub-parallel bundle of fibers as it reaches the surface where it is often the preferred site for a cookeite hemisphere."
Reference: Bowman, H. L. (1902) ON AN OCCURRENCE OF MINERALS AT HADDAM NECK, CONNECTICUT, USA. Mineralogical Magazine, 13 (no. 60), 97—122; DS Martin (1912) Annals New York Academy Science 21:189; Scovil, Jeffrey A. (1992): Famous Mineral Localities: the Gillette Quarry, Haddam Neck, Connecticut. (Mineralogical Record, 23(1):19-28.)
Muscovite var: Sericite
Formula: KAl2(AlSi3O10)(OH)2
Reference: AmMin 6:88-90 (1921)
Natrolite
Formula: Na2Al2Si3O10 · 2H2O
'Natromontebrasite'
Description: Schooner (circa 1985) reports: "A few years ago, John Gillespie did a spectrographic analysis on a sample submitted by the author, finding much Na and hardly any Li. It is quite possible that natromontebrasite was fairly common... A few masses of Strickland quarry natromontebrasite, from the pollucite zone in the middle eastern wall, halfway down, are composed of intergrown metasomatic or hydrothermal alterations. Pink brazilianite, containing a trace of Mn (analysis by the USGS), is associated with augelite, lacroixite, and hydroxylapatite. This mineral was collected by Charles Thomas, and studied by Mary E. Mrose [USGS]." This mineral was discredited in 2007 as a mixture of montebrasite, lacroixite and wardite.
Reference: Schooner, Richard. (circa 1985) Untitled manuscript on central Connecticut mineralogy.; Handbook of Mineralogy (http://www.handbookofmineralogy.org/pdfs/lacroixite.pdf)
Natrophilite
Formula: NaMn2+PO4
Habit: elongated subhedral grains
Colour: light yellow
Description: Subhedral, glassy, elongated grains embedded in lithiophilite.
Reference: Harold Moritz collection
Nepheline
Formula: Na3K(Al4Si4O16)
Habit: anhedral to subhedral grains
Colour: pale gray
Description: Major component of the rock.
Reference: Schooner, Richard. (circa 1980s), Untitled manuscript on central Connecticut mineralogy.
Nickeline
Formula: NiAs
Habit: grains
Colour: bronze
Description: Reported by Schairer (1931) "Found in mica schist", confirmed by Chomiak (1989). Associated with waxy, pale apple green annabergite.
Reference: Chomiak, B. A. (1989): An integrated study of the structure and mineralization at Great Hill, Cobalt, Connecticut [M.S. thesis]: University of Connecticut, Storrs, Connecticut, 288 p.
Nickelskutterudite
Formula: (Ni,Co,Fe)As3
Habit: grains
Description: "Shepard [1837] initially identified the Co-Ni bearing arsenide as the cubic di-arsenide, smaltite but after obtaining and studying additional material from his own mine he pronounced it to be a new orthorhombic tri-arsenide for which he proposed the name "Chathamite"....In the mid 1850s Genth (in Goodrich, 1854) questioned Shepard's identification and suggested that Chathamite was simply an iron rich variety of the cubic arsenide chloanthite (a misconception that perpetuated up to, and including, the 7th edition of Dana's Manual of Mineralogy). As it turns out, Shepard's Chathamite is indeed orthorhombic, but today would be classified as a nickel-cobalt rich loellingite." Gray (2005)
Reference: Gray, Norman (2005): The Historic New-Gate And Cobalt Mines Of Connecticut. Field Trip A1 in Guidebook For Field Trips in Connecticut, New England Inter Collegiate Geological Conference.
Nontronite
Formula: Na0.3Fe2((Si,Al)4O10)(OH)2 · nH2O
Habit: clay
Colour: greenish
Description: A greenish clay mineral, forming a vein or zone, near the contact of a nepheline-bearing dike and granite gneiss has been identified as nontronite. It was studied by X-ray diffraction.
Reference: Schooner, Richard. (circa 1980s), Untitled manuscript on central Connecticut mineralogy.
Opal
Formula: SiO2 · nH2O
Localities: Reported from at least 21 localities in this region.
Opal var: Opal-AN
Formula: SiO2 · nH2O
Localities: Reported from at least 20 localities in this region.
Orthoclase
Formula: K(AlSi3O8)
Oxy-dravite
Formula: Na(MgAl2)MgAl5(Si6O18)(BO3)3(OH)3O
Reference: Bosi, F. & Lucchesi, S. (2004) European Journal of Mineralogy, 16, 335-344; American Mineralogist Crystal Structure Database - rruff.geo.arizona.edu/AMS/minerals/Oxy-dravite
Palermoite
Formula: (Li,Na)2(Sr,Ca)Al4(PO4)4(OH)4
Colour: colorless
Description: "A colorless acicular mineral, found by the author in a vug of messelite, at the State Forest Mine in East Hampton, does not fit the description of any typical species except palermoite. Unfortunately, very little was obtained; an excellent sample was sent away for testing, but was evidently lost" (Schooner 1961). Most likely, this was a very poor guess.
Reference: Schooner (1961)
Paragonite
Formula: NaAl2(AlSi3O10)(OH)2
Habit: anhedral
Colour: white to gray
Description: Sillimanite, collected in a quartz vein through schist, is altered, in a few samples, to a very soft, greasy-feeling, white or gray material. X-ray study indicates a mixture of fine-grained paragonite and subsidiary pyrophyllite. A fingernail easily scratches it.
Reference: Schooner, Richard. (circa 1985), Untitled manuscript on central Connecticut mineralogy.
Parsonsite
Formula: Pb2(UO2)(PO4)2
Habit: alteration of uraninite
Description: Schooner (circa 1985) reports: "A soft uraninite alteration, on a Wesleyan University sample from the Strickland quarry, gave the X-ray pattern of parsonsite. The available material was consumed in testing."
Reference: Schooner, Richard. (circa 1985), Untitled manuscript on central Connecticut mineralogy.
Petalite
Formula: LiAl(Si4O10)
Habit: granular to cleavable masses
Colour: pale grey to white
Description: Schooner (1958) says: "sparingly associated with the pollucite which the author discovered at the Strickland Quarry in Portland in l954. It was in the form of glassy white or colorless cleavages and coarsely crystalline aggregates." Later, in Schooner (circa 1985), he elaborates: "Good specimens of white petalite, closely associated with colorless pollucite, were collected deep in the Strickland quarry, in the early 1950s. The author appears to have the only such material. It is usually granular, so the perfect cleavage is not as conspicuous as might be expected. The petalite was verified by X-ray diffraction. Similar petalite has been found on the dumps, intergrown with spodumene; the spodumene may be thoroughly altered to 'pinite', whereas the petalite, being much more stable, is in a fresh condition."
Reference: Schooner, Richard. (1958): The Mineralogy of the Portland-East Hampton-Middletown-Haddam Area in Connecticut (With a few notes on Glastonbury and Marlborough). Published by Richard Schooner; Ralph Lieser of Pappy’s Beryl Shop, East Hampton; and Howard Pate of Fluorescent House, Branford, Connecticut.; Schooner, Richard. (circa 1985), Untitled manuscript on central Connecticut mineralogy.
Petscheckite ?
Formula: UFe(Nb,Ta)2O8
Habit: massive
Colour: black
Description: Glassy metamict material associated with liandratite and columbite. Data required to substantiate this entry.
Reference: Found by Fred Davis
Phenakite
Formula: Be2SiO4
Phlogopite
Formula: KMg3(AlSi3O10)(OH)2
Phosphophyllite
Formula: Zn2Fe(PO4)2 · 4H2O
Colour: green
Description: "occurs as a hydrothermal alteration of sphalerite and triphylite, in vugs of messelite, with vivianite, at the State Forest Mine in East Hampton. Very few specimens have been found, and they are small; the crystals are green and quite glassy, the largest being about an eighth of an inch in diameter. The author suspected the identity of this material from the time he discovered it, several years ago, but it was not confirmed until recently. Some of the optical data follows: R. I. 1.615; optical angle 45 degrees, more or less; optic sign negative; birefringence high." (Schooner 1961)
Reference: Schooner (1958); Schooner (1961)
Phosphuranylite
Formula: (H3O)3KCa(UO2)7(PO4)4O4 · 8H2O
Pickeringite
Formula: MgAl2(SO4)4 · 22H2O
Piemontite
Formula: {Ca2}{Al2Mn3+}(Si2O7)(SiO4)O(OH)
Reference: Davis, James W. (1901): The Minerals of Haddam, Conn. Mineral Collector, v. 8, no. 4, pp. 50-54, and no. 5, pp. 65-70.; Rocks & Minerals (1995) 70:396-409
'Pinite'
Pitticite ?
Formula: (Fe, AsO4, H2O) (?)
Description: Reported by Dick Schooner in Januzzi (1976) but no details provided.
Reference: Januzzi (1976): Mineral Localities of Connecticut & Southeastern New York State, p. 235.
Planerite
Formula: Al6(PO4)2(HPO4)2(OH)8 · 4 H2O
Description: Schooner (circa 1985) writes that "A Boston Mineral Club list of Strickland quarry minerals, dating from about 1940, describes planerite as green crusts on fractured quartz. Several pieces of that material, resembling variscite, were collected at the time; unfortunately, none is now available for study."
Reference: Schooner, Richard. (circa 1985), Untitled manuscript on central Connecticut mineralogy.
Plattnerite
Formula: PbO2
Colour: sooty black
Description: From Schooner (circa 1980s): "Plattnerite formed a sooty black coating on altered galena, with considerable massicot and litharge, at one of the Middletown lead mines. The identity was established by X-ray study."
Reference: Schooner, Richard. (circa 1980s), Untitled manuscript on central Connecticut mineralogy.
Pollucite
Formula: (Cs,Na)2(Al2Si4O12) · 2H2O
Powellite
Formula: Ca(MoO4)
Prehnite
Formula: Ca2Al2Si3O10(OH)2
Localities: Reported from at least 8 localities in this region.
'Pumpellyite' ?
Colour: green
Description: Described by Yedlin (1962) as "fine green mounds of clinochlore", but most likely actually pumpellyite given its prevalence at other basalt quarries in the area.
Reference: Yedlin, Neal. (1962), The Micro-mounter. Rocks and Minerals: 37(5-6): 248.
Purpurite
Formula: Mn3+(PO4)
Habit: encrustation
Colour: purple
Description: Rare alteration of lithiophilite. Parent lithiophilite has Mn/Mn + Fe = 0.97 (Moore, 2000).
Reference: Moore, P. B. (2000): Analyses of Primary Phosphates from Pegmatites in Maine and Other Localities, in V. T. King (editor), Mineralogy of Maine. Mining History, Gems, and Geology, Maine Geological Survey, Augusta, Maine: 333-336.; Schooner, Richard. (circa 1985), Untitled manuscript on central Connecticut mineralogy.
Pyrite
Formula: FeS2
Localities: Reported from at least 34 localities in this region.
'Pyrochlore Group'
Formula: A2Nb2(O,OH)6Z
Pyrolusite
Formula: Mn4+O2
Localities: Reported from at least 9 localities in this region.
Pyromorphite
Formula: Pb5(PO4)3Cl
Reference: Januzzi, 1976. Mineral Localities of CT and Southeastern NY State
Pyrophanite
Formula: Mn2+TiO3
Habit: tabular
Colour: dark red to black
Description: "Very small brilliant tabular crystals, looking black through dark red under strong magnification, are commonly embedded in tephroite, kutnohorite, pyroxymangite, and spessartine from the Jail Hill quarry. Studies at the USGS and the University of Michigan have confirmed the identification."
Reference: Januzzi, 1976. Mineral Localities of CT & Southeastern NY State, p.229, 235; Schooner, Richard. (circa 1980s), Untitled manuscript on central Connecticut minerals.
Pyrophyllite
Formula: Al2Si4O10(OH)2
Description: Sillimanite, collected in a quartz vein through schist, is altered, in a few samples, to a very soft, greasy-feeling, white or gray material. X-ray study indicates a mixture of fine-grained paragonite and subsidiary pyrophyllite. A fingernail easily scratches it.
Reference: Schooner, Richard. (circa 1985), Untitled manuscript on central Connecticut mineralogy.
Pyroxmangite
Formula: MnSiO3
Habit: cleavable masses
Colour: pink
Description: Bustamite and pyroxmangite occurred at the Jail Hill quarry; one light pink, with spessartine and dolomite; the other a deeper pink, and with a more fibrous cleavage, associated with tephroite and yellow spessartine. X-ray patterns were carefully studied and spectrographic tests made. Only a few rich specimens were found. Earlier, both of these minerals had been dismissed as "rhodonite".
Reference: Schooner, Richard. (circa 1980s), Untitled manuscript on central Connecticut minerals.
Pyrrhotite
Formula: Fe7S8
Localities: Reported from at least 13 localities in this region.
Quartz
Formula: SiO2
Localities: Reported from at least 92 localities in this region.
Quartz var: Amethyst
Formula: SiO2
Quartz var: Blue Quartz
Formula: SiO2
Reference: Peter Cristofono collection, 2018
Quartz var: Chalcedony
Formula: SiO2
Colour: white
Fluorescence: pale yellow-white
Description: filling fractures in pollucite masses. As "snowflake" inclusions in pollucite.
Reference: Seaman (1963) : THE WALDEN GEM MINE. Rocks and Minerals, Vol. 38, Nos. 7-8, Whole No. 295, July-August, p. 355-62.
Quartz var: Citrine
Formula: SiO2
Description: Schooner (1958): "Citrine, of fine gem quality, was formerly found at the Strickland Quarry, and a few stones were facetted from it... evidently the “topaz” which some people say was taken from there."
Reference: Schooner, Richard. (1955): 90 Minerals from 1 Connecticut Hill. Rocks & Minerals: 30(7-8): 351-8.; Schooner, Richard. (1958): The Mineralogy of the Portland-East Hampton-Middletown-Haddam Area in Connecticut (With a few notes on Glastonbury and Marlborough). Published by Richard Schooner; Ralph Lieser of Pappy’s Beryl Shop, East Hampton; and Howard Pate of Fluorescent House, Branford, Connecticut.
Quartz var: Ferruginous Quartz
Formula: SiO2
Reference: P Cristofono collection, 2007
Quartz var: Milky Quartz
Formula: SiO2
Quartz var: Rock Crystal
Formula: SiO2
Quartz var: Rose Quartz
Formula: SiO2
Localities: Reported from at least 10 localities in this region.
Quartz var: Smoky Quartz
Formula: SiO2
Localities: Reported from at least 32 localities in this region.
Rammelsbergite ?
Formula: NiAs2
Description: Reported by Dick Schooner in Januzzi (1976) p. 235, no details provided.
Reference: Januzzi (1976) Mineral Localities of Connecticut & Southeastern New York State, p 234-5.
Realgar ?
Formula: As4S4
Description: According to an unconfirmed report by Schooner (circa 1980s), very sparingly associated with arsenopyrite.
Reference: Schooner, Richard. (circa 1980s), Untitled manuscript on central Connecticut mineralogy.
Reddingite ?
Formula: (Mn2+,Fe2+)3(PO4)2 · 3H2O
Habit: micro-crystals
Colour: dark red
Description: Rare micro-crystals in altered lithiophilite may be this typical alteration product (Schooner, circa 1985).
Reference: Schooner, Richard. (circa 1985), Untitled manuscript on central Connecticut mineralogy.
Rhodochrosite
Formula: MnCO3
Rhodonite
Formula: Mn2+SiO3
Rockbridgeite ?
Formula: Fe2+Fe3+4(PO4)3(OH)5
Description: reported by Dick Schooner, no details in the reference.
Reference: Januzzi (1976) p.234-5.
Roscherite ?
Formula: Ca2Mn2+5Be4(PO4)6(OH)4 · 6H2O
Description: Needs verification because of lack of data. May be greifensteinite described after the reference date.
Reference: Rocks & Min.: 70:403
Rutile
Formula: TiO2
Localities: Reported from at least 6 localities in this region.
Rutile var: Strüverite
Formula: (Ti,Ta,Fe)O2
Reference: Jarnot (1989) in Rocks & Min.: 64:471.
Safflorite ?
Formula: (Co,Ni,Fe)As2
Description: Reported by Dick Schooner in Januzzi (1976) p. 235, no details provided.
Reference: Januzzi (1976) Mineral Localities of Connecticut & Southeastern New York State, p 234-5.
Samarskite-(Y)
Formula: YFe3+Nb2O8
Localities: Reported from at least 6 localities in this region.
'Scapolite'
Localities: Reported from at least 7 localities in this region.
Scheelite
Formula: Ca(WO4)
Localities: Reported from at least 8 localities in this region.
Schorl
Formula: Na(Fe2+3)Al6(Si6O18)(BO3)3(OH)3(OH)
Localities: Reported from at least 55 localities in this region.
Scorodite
Formula: Fe3+AsO4 · 2H2O
Scorzalite ?
Formula: Fe2+Al2(PO4)2(OH)2
Colour: blue
Description: "Several lean examples of scorzalite and siderite, labeled "Rock Landing quarry", came from the Charles Thomas collection. They had been obtained when the locality was active in the late 1930s. The scorzalite, erroneously called "vivianite" on the label, is of a rich blue color and partly crystallized. The X-ray pattern suggests a composition somewhere between scorzalite and lazulite. A little augelite is intergrown." Schooner (circa 1980s).
Reference: Schooner, Richard. (circa 1980s), Untitled manuscript on central Connecticut mineralogy.
'Serpentine Subgroup'
Formula: D3[Si2O5](OH)4 D = Mg, Fe, Ni, Mn, Al, Zn
Reference: Lundgren, Lawrence, Jr. (1963): The Bedrock Geology of the Deep River Quadrangle. State Geological and Natural History Survey of Connecticut. Quadrangle Report No. 13: 19-21.
Sicklerite
Formula: Li1-x(Mn3+xMn2+1-x)PO4
Habit: crusts
Colour: brown
Description: Thin brown crust on altered lithiophilite with hureaulite and hydroxylapatite.
Reference: Schooner, Richard. (circa 1985), Untitled manuscript on central Connecticut mineralogy.
Siderite
Formula: FeCO3
Localities: Reported from at least 6 localities in this region.
Sillénite ?
Formula: Bi12SiO20
Habit: coating
Colour: white or yellowish
Description: According to Schooner (circa 1980s) a "thin white or yellowish coating on bismuthinite crystals" may be this mineral. Needs confirmation.
Reference: Schooner, Richard. (circa 1980s), Untitled manuscript on central Connecticut mineralogy.
Sillimanite (TL)
Formula: Al2(SiO4)O
Localities: Reported from at least 13 localities in this region.
Reference: [Nickel & Nichols, 1991, "Mineral Reference Manual"]
Silver ?
Formula: Ag
Description: Apparently a non-specific reference to the Middletown Lead Mine.
Reference: Gems and Minerals of America- Jay Ellis Ransom-1974
Skutterudite
Formula: CoAs3
Smithsonite ?
Formula: ZnCO3
Sodalite
Formula: Na8(Al6Si6O24)Cl2
Colour: white
Description: Much altered to zeolites.
Reference: Schooner, Richard. (circa 1980s), Untitled manuscript on central Connecticut mineralogy.
Spessartine
Formula: Mn2+3Al2(SiO4)3
Localities: Reported from at least 17 localities in this region.
Sphalerite
Formula: ZnS
Localities: Reported from at least 12 localities in this region.
Spinel
Formula: MgAl2O4
Reference: Lundgren, Lawrence, Jr. (1963): The Bedrock Geology of the Deep River Quadrangle. State Geological and Natural History Survey of Connecticut. Quadrangle Report No. 13: 19-21.
Spodumene
Formula: LiAlSi2O6
Spodumene var: Kunzite
Formula: LiAlSi2O6
Spurrite
Formula: Ca5(SiO4)2(CO3)
Colour: bluish-gray
Description: Schooner (circa 1985): "In some of the wollastonite pods at the Strickland quarry, bluish-gray spurrite occurs as very thin layers with grossularite and larnite. X-ray confirmation was obtained from a number of samples. Spurrite also is mixed with the granular wollastonite and its embedded minute gehlenite crystals; only X-ray peaks revealed its presence in that material." Studied by Waldemar T. Schaller of USGS.
Reference: Schooner, Richard. (circa 1985), Untitled manuscript on central Connecticut mineralogy.
Staurolite
Formula: Fe2+2Al9Si4O23(OH)
Localities: Reported from at least 6 localities in this region.
Stewartite ?
Formula: Mn2+Fe3+2(PO4)2(OH)2 · 8H2O
Colour: pale yellow
Description: According to Schooner (circa 1985) occurs as tiny yellow crystals in altered hureaulite. Specimens of hureaulite from the dump bulldozed in 1984 show small areas of a yellow alteration, possibly stewartite. So far an SEM-EDS analysis (2017) of yellow grains in lithiophilite have proven to be natrophilite.
Reference: Schooner, Richard. (circa 1985), Untitled manuscript on central Connecticut mineralogy.
'Stilbite subgroup'
Localities: Reported from at least 8 localities in this region.
Stilpnomelane
Formula: (K,Ca,Na)(Fe2+,Mg,Al)8(Si,Al)12(O,OH)36 · nH2O
Locality: Chester, Middlesex Co., Connecticut, USA - erroneously reported
Description: Reference says occurs in "Cheshire" and other towns but not Chester.
Reference: Januzzi, 1976. Mineral Localities of CT and Southeastern NY State
Strunzite
Formula: Mn2+Fe3+2(PO4)2(OH)2 · 6H2O
Habit: radiating acicular needles and fibers
Colour: golden to yellow-orange
Description: "occurs as typical aggregates of golden fibers, associated with [messelite] and siderite, as well as sulfides....The strunzite is rare, and no more than half a dozen specimens have been secured...and none of them could be described as of outstanding quality. The identity of this material was confirmed by Clifford Frondel of Harvard University." (Schooner 1958) Associated with triphylite secondaries.
Reference: Schooner (1958, 1961)
Sulphur
Formula: S8
Talc
Formula: Mg3Si4O10(OH)2
'Tantalite'
Formula: (Mn,Fe)(Ta,Nb)2O6
Localities: Reported from at least 9 localities in this region.
Tantalite-(Fe)
Formula: Fe2+Ta2O6
Habit: rectangular prismatic
Colour: black with bluish iridescence
Description: One columbite-tantalite crystal (https://www.mindat.org/photo-275489.html) suspected from its high SG of being tantalite was analyzed by SEM-EDS and found to be tantalite-(Fe). There may be more as each crystal would need to be tested to confirm and few have been.
Reference: Harold Moritz collection
Tantalite-(Mn)
Formula: Mn2+Ta2O6
Tanteuxenite-(Y)
Formula: Y(Ta,Nb,Ti)2(O,OH)6
Habit: subhedral grains
Colour: dark brown
Description: Semi-quantitative data from SEM/EDS analyzed using the method of Ercit (2005).
Reference: Fred E. Davis Collection
'Tapiolite'
Formula: (Fe,Mn)(Ta,Nb)2O6
Description: Bruce Jarnot did find and confirm tapiolite from the Hale Quarry. There were two specimens, one a complex crystal group (about 0.5 inches) and the other a similar size group that had altered 50% to pyrochlore. It resembled a hard yellow marble that, when split, showed the remains of tapiolite xls in the center. The IDs were made by EDX (element ratios) and X-ray unit crystal pattern.
Reference: Jarnot, Bruce M. (1989): Minerals New to the Portland Area Pegmatites of Central Connecticut. Rocks and Minerals, Volume 64 (Nov.-Dec.), p. 471.
Tapiolite-(Fe)
Formula: (Fe,Mn)(Ta,Nb)2O6
Habit: Complex, twinned short prisms or pyramidal tetragonal.
Colour: black
Description: Three specimens are known, with very similar with crystals about 3-4 cm, in quartz, albite and/or muscovite. Two are complexly crystallized apparently twinned, that somewhat resemble garnets, but of course black and submetallic. Other than one specimen from the Hale Quarry, this is the only known Connecticut location for this mineral.
Reference: Leif DiValentino collection, Harold Moritz collection
Tephroite
Formula: Mn2+2SiO4
Habit: anhedral
Colour: tan, brown, dark brown
Description: Reported by Dick Schooner. Specimens mostly are pure masses of anhedral grains, or scattered grains associated with bustamite and spessartine, all with black staining. According to Schooner: "Several bodies of more complex mineralogy, within the spessartine, consisted for the most part of brownish tephroite, intimately intergrown with dolomite and kutnohorite, as well as yellow spessartine, alleghanyite, jacobsite, pyrophanite, etc. A few solid dark gray resinous-looking cleavages, up to an inch, were obtained. The main concentration was eventually removed as a boulder, over two feet in diameter, which may well hold the world's record for toughness; it took the author two days of steady pounding to reduce it!"
Reference: Januzzi, 1976. Mineral Localities of CT & Southeastern NY State, p.229, 235; Harold Moritz collection; Schooner, Richard. (circa 1980s), Untitled manuscript on central Connecticut minerals.
Thorite
Formula: Th(SiO4)
Description: Yale Peabody Museum specimen 044598.
Reference: Rocks & Minerals (1995) 70:396-409
'Thorogummite'
Formula: (Th,U)(SiO4)1-x(OH)4x
Titanite
Formula: CaTi(SiO4)O
Localities: Reported from at least 16 localities in this region.
Todorokite ?
Formula: (Na,Ca,K,Ba,Sr)1-x(Mn,Mg,Al)6O12 · 3-4H2O
Colour: black
Description: Reportedly one of the black Mn-rich alteration crusts.
Reference: Schooner, Richard. (circa 1980s), Untitled manuscript on central Connecticut minerals.
Topaz
Formula: Al2(SiO4)(F,OH)2
Localities: Reported from at least 7 localities in this region.
Torbernite
Formula: Cu(UO2)2(PO4)2 · 12H2O
Localities: Reported from at least 10 localities in this region.
'Tourmalinated Quartz'
Reference: David Busha collection
'Tourmaline'
Formula: A(D3)G6(Si6O18)(BO3)3X3Z
Localities: Reported from at least 19 localities in this region.
'Tourmaline var: Achroite'
Formula: A(D3)G6(T6O18)(BO3)3X3Z
Reference: P Cristofono collection
'Tourmaline var: Rubellite'
Formula: A(D3)G6(T6O18)(BO3)3X3Z
'Tourmaline var: Verdelite'
Formula: A(D3)G6(T6O18)(BO3)3X3Z
'Tourmaline var: Watermelon Tourmaline'
Formula: A(D3)G6(T6O18)(BO3)3X3Z
Tremolite
Formula: ☐{Ca2}{Mg5}(Si8O22)(OH)2
Triphylite
Formula: LiFe2+PO4
Triplite
Formula: Mn2+2(PO4)F
Uraninite
Formula: UO2
Localities: Reported from at least 27 localities in this region.
Uranophane
Formula: Ca(UO2)2(SiO3OH)2 · 5H2O
Localities: Reported from at least 15 localities in this region.
'Uranpyrochlore (of Hogarth 1977)'
Formula: (Ca,U,Ce)2(Nb,Ti,Ta)2O6(OH,F)
Description: Specimen in Andrew Kruegel collection identified by SEM-EDS.
Reference: Specimen in collection of Andrew Kruegel
'Uvite Series' ?
Formula: Ca(Mg3)MgAl5(Si6O18)(BO3)3(OH)3(F/OH)
Colour: black, dark brown
Description:
Reference: Rowan M. Lytle Collection
Vandendriesscheite
Formula: PbU7O22 · 12H2O
Habit: pseudomorphs after uraninite
Colour: yellow
Description: "In a study at Harvard University, in 1964, both fourmarierite and vandendriesscheite were identified, by X-ray diffraction, as components of hard "gummite" pseudomorphs after uraninite from the Rock Landing quarry. Fourmarierite is reddish; vandendriesscheite, yellow. The material came from the Charles Thomas collection." Schooner (circa 1980s).
Reference: Schooner, Richard. (circa 1980s), Untitled manuscript on central Connecticut mineralogy.
Vesuvianite
Formula: (Ca,Na,☐)19(Al,Mg,Fe3+)13(☐,B,Al,Fe3+)5(Si2O7)4(SiO4)10(OH,F,O)10
Vivianite
Formula: Fe2+3(PO4)2 · 8H2O
Wardite
Formula: NaAl3(PO4)2(OH)4 · 2H2O
Description: Schooner (circa 1985) reports that "Wardite and wavellite occurred in a fine-grained replacement of natromontebrasite from the Strickland quarry. The rest of the sample was quartz. X-ray study revealed their existence." Natromontebrasite was discredited in 2007 as a mixture of wardite, montebrasite and lacroixite, which were all documented here by the study Schooner mentions.
Reference: Schooner, Richard. (circa 1985), Untitled manuscript on central Connecticut mineralogy.
Whitmoreite
Formula: Fe2+Fe3+2(PO4)2(OH)2 · 4H2O
Habit: radiating acicular crystals in micro spherical "naval mine" aggregates
Colour: golden brown
Description: Reported by Dick Schooner, no details in the references. Identified by Van King from posted photographs.
Reference: Rocks & Min.: 70:403; Januzzi (1976) p.234-5.
Wodginite
Formula: Mn2+Sn4+Ta2O8
Wollastonite
Formula: CaSiO3
Habit: granular, bladed
Colour: white
Fluorescence: orange
Description: Found by Schooner in 1953 and 1954, and reported in Schooner (1955): "It is pure white in color, and granular massive in form. Fairly large pieces were obtained from the cores of lenticular quartz-actinolite-grossularite-diopside "horses" [pods] in biotite schist, from near the pegmatite. The mineral is photosensitive, turning brown and ugly if exposed to sunlight for very long. It is faintly fluorescent, in a pale orange tint, and strongly phosphorescent, in a brighter shade of the same color, under short-wave ultra-violet radiations". In Schooner (1958) there is more information: "W. T. Schaller, of the U. S. Geological Survey, made an optical study of this wollastonite, to determine its manganese content through a correlation with the refractive index…which was 1.632, indicating about one percent of iron and manganese oxides." Followed by this passage in Schooner (circa 1985): "Waldemar T. Schaller studied samples submitted by the author. The wollastonite, with tiny embedded tan gehlenite crystals, and occasional light yellow crystals of grossularite, occupies the centers of a few pods, surrounded by concentric zones of fine-grained tan grossularite, white quartz, and greenish diopside. Spurrite, larnite, vesuvianite, and calcite are rarely associated. Spurrite may, indeed, be mixed, granularly, with wollastonite. Small bladed crystals of wollastonite are seen on a few specimens."
Reference: Schooner, Richard. (1955): 90 Minerals from 1 Connecticut Hill. Rocks & Minerals: 30(7-8): 351-8.; Schooner, Richard. (1958): The Mineralogy of the Portland-East Hampton-Middletown-Haddam Area in Connecticut (With a few notes on Glastonbury and Marlborough). Published by Richard Schooner; Ralph Lieser of Pappy’s Beryl Shop, East Hampton; and Howard Pate of Fluorescent House, Branford, Connecticut.; Schooner, Richard. (circa 1985), Untitled manuscript on central Connecticut mineralogy.
Wulfenite ?
Formula: Pb(MoO4)
Description: The reference provides no details.
Reference: Weber, Marcelle H. and Earle C. Sullivan. (1995): CONNECTICUT MINERAL LOCALITY INDEX. Rocks & Minerals (Connecticut Issue), Volume 70, No. 6, p. 403.
Wurtzite ?
Formula: (Zn,Fe)S
Wurtzite var: Voltzite ?
Formula: (Zn,Fe)S
Xanthoxenite ?
Formula: Ca4Fe3+2(PO4)4(OH)2 · 3H2O
Xenotime-(Y) ?
Formula: Y(PO4)
'Yttrocolumbite-(Y)' ?
Formula: Y(U4+,Fe2+)Nb2O8
Description: Extremely rare mineral. No chemical data available.
'Zinnwaldite'
Habit: micaceous
Colour: golden-brown, purplish-grey
Description: Found in the cleavelandite-quartz intermediate zone. Schooner (circa 1985) reports that "X-ray and spectrographic study, quite recently, have identified rich specimens, consisting of coarse golden-brown aggregates with zoned elbaite-schorl tourmaline. It can also be purplish-gray."
Reference: Schooner, Richard. (circa 1985), Untitled manuscript on central Connecticut mineralogy.
Zircon
Formula: Zr(SiO4)
Localities: Reported from at least 21 localities in this region.
Zircon var: Calyptolite
Formula: Zr(SiO4)
Reference: Am Jour Sci (1851) 2nd sers vol 12:210
Zircon var: Cyrtolite
Formula: Zr[(SiO4),(OH)4]
Localities: Reported from at least 11 localities in this region.
Zoisite
Formula: Ca2Al3[Si2O7][SiO4]O(OH)
Zoisite var: Thulite
Formula: {Ca2}{Al,Mn3+3}(Si2O7)(SiO4)O(OH)

List of minerals arranged by Strunz 10th Edition classification

Group 1 - Elements
Gold1.AA.05Au
Graphite1.CB.05aC
Silver ?1.AA.05Ag
Sulphur1.CC.05S8
Group 2 - Sulphides and Sulfosalts
Acanthite2.BA.35Ag2S
Arsenopyrite2.EB.20FeAsS
var: Danaite2.EB.20(Fe0.90Co0.10)AsS - (Fe0.65Co0.35)AsS
Bismuthinite2.DB.05Bi2S3
Breithauptite ?2.CC.05NiSb
Chalcopyrite2.CB.10aCuFeS2
Cobaltite ?2.EB.25CoAsS
Covellite2.CA.05aCuS
Cuprobismutite2.JA.10aCu8AgBi13S24
Galena2.CD.10PbS
Gersdorffite2.EB.25NiAsS
Greenockite2.CB.45CdS
Löllingite2.EB.15aFeAs2
Marcasite2.EB.10aFeS2
Molybdenite2.EA.30MoS2
Nickeline2.CC.05NiAs
Nickelskutterudite ?2.EC.05(Ni,Co,Fe)As3
Pyrite2.EB.05aFeS2
Pyrrhotite2.CC.10Fe7S8
Rammelsbergite ?2.EB.15aNiAs2
Realgar ?2.FA.15aAs4S4
Safflorite ?2.EB.15a(Co,Ni,Fe)As2
Skutterudite ?2.EC.05CoAs3
Sphalerite2.CB.05aZnS
Wurtzite ?2.CB.45(Zn,Fe)S
var: Voltzite ?2.CB.45(Zn,Fe)S
Group 3 - Halides
Fluorite3.AB.25CaF2
var: Chlorophane3.AB.25CaF2
Group 4 - Oxides and Hydroxides
Anatase4.DD.05TiO2
Arsenolite ?4.CB.50As2O3
Becquerelite4.GB.10Ca(UO2)6O4(OH)6 · 8H2O
Birnessite4.FL.45(Na,Ca)0.5(Mn4+,Mn3+)2O4 · 1.5H2O
Bismite4.CB.60Bi2O3
Bismutotantalite4.DE.30Bi(Ta,Nb)O4
Cassiterite4.DB.05SnO2
Chrysoberyl4.BA.05BeAl2O4
Claudetite ?4.CB.45As2O3
Columbite-(Fe)4.DB.35Fe2+Nb2O6
Euxenite-(Y) ?4.DG.05(Y,Ca,Ce,U,Th)(Nb,Ta,Ti)2O6
Fourmarierite4.GB.25Pb(UO2)4O3(OH)4 · 4H2O
Gahnite4.BB.05ZnAl2O4
Galaxite ?4.BB.05Mn2+Al2O4
Goethite4.00.α-Fe3+O(OH)
Groutite4.FD.10Mn3+O(OH)
Hematite4.CB.05Fe2O3
Hydrokenoelsmoreite ?4.DH.152W2O6(H2O)
var: Ferritungstite ?4.DH.152W2O6(H2O)
Ilmenite4.CB.05Fe2+TiO3
var: Manaccanite4.CB.05Fe2+TiO3
Ishikawaite4.DB.25U4+Fe2+Nb2O8
Ixiolite4.DB.25(Ta,Nb,Sn,Fe,Mn)4O8
var: Wolframoixiolite4.DB.25(Nb,W,Ta,Fe,Mn,Nb)2O4
Jacobsite4.BB.05Mn2+Fe3+2O4
Liandratite4.DH.35U(Nb,Ta)2O8
Litharge4.AC.20PbO
Maghemite4.BB.15(Fe3+0.670.33)Fe3+2O4
Magnetite4.BB.05Fe2+Fe3+2O4
Manganite ?4.FD.15Mn3+O(OH)
Massicot4.AC.25PbO
'Microlite Group'4.00.A2-mTa2X6-wZ-n
'var: Uranmicrolite (of Hogarth 1977)'4.00.A2-mTa2X6-wZ-n
Minium4.BD.05Pb3O4
Opal4.DA.10SiO2 · nH2O
var: Opal-AN4.DA.10SiO2 · nH2O
Petscheckite ?4.DH.35UFe(Nb,Ta)2O8
Plattnerite4.DB.05PbO2
'Pyrochlore Group'4.00.A2Nb2(O,OH)6Z
Pyrolusite4.DB.05Mn4+O2
Pyrophanite4.CB.05Mn2+TiO3
Quartz4.DA.05SiO2
var: Amethyst4.DA.05SiO2
var: Blue Quartz4.DA.05SiO2
var: Chalcedony4.DA.05SiO2
var: Citrine4.DA.05SiO2
var: Ferruginous Quartz4.DA.05SiO2
var: Milky Quartz4.DA.05SiO2
var: Rock Crystal4.DA.05SiO2
var: Rose Quartz4.DA.05SiO2
var: Smoky Quartz4.DA.05SiO2
Rutile4.DB.05TiO2
var: Strüverite4.DB.05(Ti,Ta,Fe)O2
Samarskite-(Y)4.DB.25YFe3+Nb2O8
Sillénite ?4.CB.70Bi12SiO20
Spinel4.BB.05MgAl2O4
Tantalite-(Fe)4.DB.35Fe2+Ta2O6
Tantalite-(Mn)4.DB.35Mn2+Ta2O6
Tanteuxenite-(Y)4.DG.05Y(Ta,Nb,Ti)2(O,OH)6
Tapiolite-(Fe)4.DB.10(Fe,Mn)(Ta,Nb)2O6
Todorokite ?4.DK.10(Na,Ca,K,Ba,Sr)1-x(Mn,Mg,Al)6O12 · 3-4H2O
Uraninite4.DL.05UO2
'Uranpyrochlore (of Hogarth 1977)'4.DH.15(Ca,U,Ce)2(Nb,Ti,Ta)2O6(OH,F)
Vandendriesscheite4.GB.40PbU7O22 · 12H2O
Wodginite4.DB.40Mn2+Sn4+Ta2O8
'Yttrocolumbite-(Y)' ?4.DB.25Y(U4+,Fe2+)Nb2O8
Group 5 - Nitrates and Carbonates
Aragonite5.AB.15CaCO3
Aurichalcite5.BA.15(Zn,Cu)5(CO3)2(OH)6
Azurite5.BA.05Cu3(CO3)2(OH)2
Bastnäsite-(Ce)5.BD.20aCe(CO3)F
Beyerite ?5.BE.35Ca(BiO)2(CO3)2
Bismutite5.BE.25(BiO)2CO3
Calcite5.AB.05CaCO3
Cerussite5.AB.15PbCO3
Dolomite5.AB.10CaMg(CO3)2
Hydrozincite5.BA.15Zn5(CO3)2(OH)6
Kutnohorite5.AB.10CaMn2+(CO3)2
Malachite5.BA.10Cu2(CO3)(OH)2
Rhodochrosite5.AB.05MnCO3
Siderite5.AB.05FeCO3
Smithsonite ?5.AB.05ZnCO3
Group 7 - Sulphates, Chromates, Molybdates and Tungstates
Anglesite7.AD.35PbSO4
Anhydrite7.AD.30CaSO4
Baryte7.AD.35BaSO4
Epsomite7.CB.40MgSO4 · 7H2O
Ferrimolybdite7.GB.30Fe2(MoO4)3 · nH2O
Goslarite ?7.CB.40ZnSO4 · 7H2O
Gypsum7.CD.40CaSO4 · 2H2O
var: Selenite7.CD.40CaSO4 · 2H2O
Hexahydrite ?7.CB.25MgSO4 · 6H2O
Jarosite ?7.BC.10KFe3+3(SO4)2(OH)6
Johannite ?7.EB.05Cu(UO2)2(SO4)2(OH)2 · 8H2O
Linarite ?7.BC.65PbCu(SO4)(OH)2
Melanterite7.CB.35Fe2+(H2O)6SO4 · H2O
Pickeringite7.CB.85MgAl2(SO4)4 · 22H2O
Powellite7.GA.05Ca(MoO4)
Scheelite7.GA.05Ca(WO4)
Wulfenite ?7.GA.05Pb(MoO4)
Group 8 - Phosphates, Arsenates and Vanadates
Amblygonite ?8.BB.05LiAl(PO4)F
Annabergite8.CE.40Ni3(AsO4)2 · 8H2O
Arrojadite-(KFe) ?8.BF.05{KNa}{Fe2+◻}{Ca}{Na2◻}{Fe2+13}{Al}(PO4)11(HPO4)(OH)2
Augelite8.BE.05Al2(PO4)(OH)3
Autunite8.EB.05Ca(UO2)2(PO4)2 · 11H2O
Beraunite ?8.DC.27Fe2+Fe3+5(PO4)4(OH)5 · 6H2O
Brazilianite8.BK.05NaAl3(PO4)2(OH)4
Crandallite ?8.BL.10CaAl3(PO4)(PO3OH)(OH)6
Diadochite8.DB.05Fe3+2(PO4)(SO4)(OH) · 5H2O
Dickinsonite-(KMnNa)8.BF.05{KNa}{Mn2+◻}{Ca}{Na3}{Mn2+13}{Al}(PO4)12(OH)2
Eosphorite8.DD.20Mn2+Al(PO4)(OH)2 · H2O
Erythrite8.CE.40Co3(AsO4)2 · 8H2O
Fairfieldite8.CG.05Ca2Mn2+(PO4)2 · 2H2O
Ferrisicklerite8.AB.10Li1-x(Fe3+xFe2+1-x)PO4
Fluorapatite8.BN.05Ca5(PO4)3F
var: Mn-bearing Fluorapatite8.BN.05(Ca,Mn2+)5(PO4)3(F,Cl,OH) or Ca5([P,Mn5+]O4)3(F,Cl,OH)
Graftonite ?8.AB.20Fe2+Fe2+2(PO4)2
Grayite8.CJ.45(Th,Pb,Ca)(PO4) · H2O
Herderite ?8.BA.10CaBePO4(F,OH)
Heterosite8.AB.10(Fe3+,Mn3+)PO4
Hureaulite8.CB.10(Mn,Fe)5(PO4)2(HPO4)2 · 4H2O
Hydroxylapatite8.BN.05Ca5(PO4)3(OH)
Hydroxylherderite8.BA.10CaBe(PO4)(OH,F)
Lacroixite8.BH.10NaAl(PO4)F
Laueite8.DC.30Mn2+Fe3+2(PO4)2(OH)2 · 8H2O
Lithiophilite8.AB.10LiMn2+PO4
Ludlamite8.CD.20Fe2+3(PO4)2 · 4H2O
Messelite8.CG.05Ca2Fe2+(PO4)2 · 2H2O
Meta-autunite8.EB.10Ca(UO2)2(PO4)2 · 6-8H2O
Metatorbernite8.EB.10Cu(UO2)2(PO4)2 · 8H2O
Mimetite8.BN.05Pb5(AsO4)3Cl
Mitridatite8.DH.30Ca2Fe3+3(PO4)3O2 · 3H2O
Monazite-(Ce)8.AD.50Ce(PO4)
Montebrasite8.BB.05LiAl(PO4)(OH)
Moraesite8.DA.05Be2(PO4)(OH) · 4H2O
Morinite ?8.DM.05NaCa2Al2(PO4)2(OH)F4 · 2H2O
Natrophilite8.AB.10NaMn2+PO4
Palermoite ?8.BH.25(Li,Na)2(Sr,Ca)Al4(PO4)4(OH)4
Parsonsite8.EA.10Pb2(UO2)(PO4)2
Phosphophyllite8.CA.40Zn2Fe(PO4)2 · 4H2O
Phosphuranylite8.EC.10(H3O)3KCa(UO2)7(PO4)4O4 · 8H2O
Pitticite ?8.DB.05(Fe, AsO4, H2O) (?)
Planerite ?8.DD.15Al6(PO4)2(HPO4)2(OH)8 · 4 H2O
Purpurite8.AB.10Mn3+(PO4)
Pyromorphite8.BN.05Pb5(PO4)3Cl
Reddingite ?8.CC.05(Mn2+,Fe2+)3(PO4)2 · 3H2O
Rockbridgeite ?8.BC.10Fe2+Fe3+4(PO4)3(OH)5
Roscherite ?8.DA.10Ca2Mn2+5Be4(PO4)6(OH)4 · 6H2O
Scorodite8.CD.10Fe3+AsO4 · 2H2O
Scorzalite ?8.BB.40Fe2+Al2(PO4)2(OH)2
Sicklerite8.AB.10Li1-x(Mn3+xMn2+1-x)PO4
Stewartite ?8.DC.30Mn2+Fe3+2(PO4)2(OH)2 · 8H2O
Strunzite8.DC.25Mn2+Fe3+2(PO4)2(OH)2 · 6H2O
Torbernite8.EB.05Cu(UO2)2(PO4)2 · 12H2O
Triphylite8.AB.10LiFe2+PO4
Triplite8.BB.10Mn2+2(PO4)F
Vivianite8.CE.40Fe2+3(PO4)2 · 8H2O
Wardite8.DL.10NaAl3(PO4)2(OH)4 · 2H2O
Whitmoreite8.DC.15Fe2+Fe3+2(PO4)2(OH)2 · 4H2O
Xanthoxenite ?8.DH.40Ca4Fe3+2(PO4)4(OH)2 · 3H2O
Xenotime-(Y) ?8.AD.35Y(PO4)
Group 9 - Silicates
Actinolite9.DE.10☐{Ca2}{Mg4.5-2.5Fe0.5-2.5}(Si8O22)(OH)2
Aegirine9.DA.25NaFe3+Si2O6
Albite9.FA.35Na(AlSi3O8)
var: Cleavelandite9.FA.35Na(AlSi3O8)
var: Oligoclase9.FA.35(Na,Ca)[Al(Si,Al)Si2O8]
var: Peristerite9.FA.35Na(AlSi3O8)
Allanite-(Ce)9.BG.05b{CaCe}{Al2Fe2+}(Si2O7)(SiO4)O(OH)
Alleghanyite9.AF.45Mn2+5(SiO4)2(OH)2
Almandine9.AD.25Fe2+3Al2(SiO4)3
Analcime9.GB.05Na(AlSi2O6) · H2O
Annite9.EC.20KFe2+3(AlSi3O10)(OH)2
Anorthite9.FA.35Ca(Al2Si2O8)
var: Labradorite9.FA.35(Ca,Na)[Al(Al,Si)Si2O8]
Anthophyllite9.DD.05☐{Mg2}{Mg5}(Si8O22)(OH)2
Augite9.DA.15(CaxMgyFez)(Mgy1Fez1)Si2O6
var: Fassaite9.DA.15(Ca,Na)(Mg,Fe2+,Al,Fe3+,Ti)[(Si,Al)2O6]
var: Titanian Augite9.DA.15(Ca,Na)(Mg,Ti, Fe,Al,)(Si,Al)2O6
Axinite-(Fe)9.BD.20Ca2Fe2+Al2BSi4O15OH
Babingtonite9.DK.05Ca2(Fe,Mn)FeSi5O14(OH)
Bavenite9.DF.25Ca4Be2Al2Si9O26(OH)2
Bazzite9.CJ.05Be3Sc2(Si6O18)
Bementite ?9.EE.05Mn7Si6O15(OH)8
Bertrandite9.BD.05Be4(Si2O7)(OH)2
Beryl9.CJ.05Be3Al2(Si6O18)
var: Aquamarine9.CJ.05Be3Al2Si6O18
var: Goshenite9.CJ.05Be3Al2(Si6O18)
var: Heliodor9.CJ.05Be3Al2(Si6O18)
var: Morganite9.CJ.05Be3Al2(Si6O18)
Bismutoferrite9.ED.25Fe3+2Bi(SiO4)2(OH)
Bityite9.EC.35LiCaAl2(AlBeSi2O10)(OH)2
Bustamite9.DG.05CaMn2+(Si2O6)
Caryopilite9.ED.15Mn2+3Si2O5(OH)4
Cerite-(Ce) ?9.AG.20(Ce,Ca)9(Mg,Fe)(SiO4)3(HSiO4)4(OH)3
Chrysocolla9.ED.20Cu2-xAlx(H2-xSi2O5)(OH)4 · nH2O
Chrysotile ?9.ED.15Mg3(Si2O5)(OH)4
Clinozoisite9.BG.05a{Ca2}{Al3}(Si2O7)(SiO4)O(OH)
Cookeite9.EC.55(Al2Li)Al2(AlSi3O10)(OH)8
Cordierite9.CJ.10(Mg,Fe)2Al3(AlSi5O18)
Cronstedtite9.ED.15Fe2+2Fe3+((Si,Fe3+)2O5)(OH)4
Cummingtonite9.DE.05☐{Mg2}{Mg5}(Si8O22)(OH)2
Datolite9.AJ.20CaB(SiO4)(OH)
Dickite9.ED.05Al2(Si2O5)(OH)4
Diopside9.DA.15CaMgSi2O6
Dravite9.CK.05Na(Mg3)Al6(Si6O18)(BO3)3(OH)3(OH)
Elbaite9.CK.05Na(Li1.5Al1.5)Al6(Si6O18)(BO3)3(OH)3(OH)
Enstatite9.DA.05MgSiO3
Epidote9.BG.05a{Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
Euclase ?9.AE.10BeAl(SiO4)(OH)
Eucryptite ?9.AA.05LiAlSiO4
Ferri-ghoseite9.DE.20☐[Mn2+Na][Mg4Fe3+]Si8O22(OH)2
Fluorapophyllite-(K)9.EA.15KCa4(Si8O20)(F,OH) · 8H2O
Foitite9.CK.05(□,Na)(Fe2+2Al)Al6(Si6O18)(BO3)3(OH)3OH
Gedrite9.DD.05☐{Mg2}{Mg3Al2}(Al2Si6O22)(OH)2
Gehlenite9.BB.10Ca2Al(AlSiO7)
Gobbinsite9.GC.05Na5(Si11Al5)O32 · 11H2O
Gonnardite9.GA.05(Na,Ca)2(Si,Al)5O10 · 3H2O
Grossular9.AD.25Ca3Al2(SiO4)3
Grunerite9.DE.05☐{Fe2+2}{Fe2+5}(Si8O22)(OH)2
'Halloysite'9.ED.10Al2(Si2O5)(OH)4
Hastingsite9.DE.15{Na}{Ca2}{Fe2+4Fe3+}(Al2Si6O22)(OH)2
Hemimorphite9.BD.10Zn4Si2O7(OH)2 · H2O
Johannsenite ?9.DA.15CaMn2+Si2O6
Kaersutite9.DE.15{Na}{Ca2}{Mg3AlTi}(Al2Si6O22)O2
Kaolinite9.ED.05Al2(Si2O5)(OH)4
Kyanite9.AF.15Al2(SiO4)O
Larnite9.AD.05Ca2SiO4
Laumontite9.GB.10CaAl2Si4O12 · 4H2O
Magnesio-hornblende9.DE.10☐{Ca2}{Mg4Al}(AlSi7O22)(OH)2
Masutomilite9.EC.20(K,Rb)(Li,Mn3+,Al)3(AlSi3O10)(F,OH)2
Meionite9.FB.15Ca4Al6Si6O24CO3
Microcline9.FA.30K(AlSi3O8)
var: Amazonite9.FA.30K(AlSi3O8)
var: Hyalophane9.FA.30(K,Ba)[Al(Si,Al)Si2O8]
Montmorillonite9.EC.40(Na,Ca)0.33(Al,Mg)2(Si4O10)(OH)2 · nH2O
Muscovite9.EC.15KAl2(AlSi3O10)(OH)2
var: Schernikite (TL)9.EC.15KAl2(AlSi3O10)(OH)2
var: Sericite9.EC.15KAl2(AlSi3O10)(OH)2
Natrolite9.GA.05Na2Al2Si3O10 · 2H2O
Nepheline9.FA.05Na3K(Al4Si4O16)
Nontronite9.EC.40Na0.3Fe2((Si,Al)4O10)(OH)2 · nH2O
Orthoclase9.FA.30K(AlSi3O8)
Oxy-dravite9.CK.05Na(MgAl2)MgAl5(Si6O18)(BO3)3(OH)3O
Paragonite9.EC.15NaAl2(AlSi3O10)(OH)2
Petalite9.EF.05LiAl(Si4O10)
Phenakite9.AA.05Be2SiO4
Phlogopite9.EC.20KMg3(AlSi3O10)(OH)2
Piemontite9.BG.05a{Ca2}{Al2Mn3+}(Si2O7)(SiO4)O(OH)
Pollucite9.GB.05(Cs,Na)2(Al2Si4O12) · 2H2O
Prehnite9.DP.20Ca2Al2Si3O10(OH)2
Pyrophyllite9.EC.10Al2Si4O10(OH)2
Pyroxmangite9.DO.05MnSiO3
Rhodonite9.DK.05Mn2+SiO3
Schorl9.CK.05Na(Fe2+3)Al6(Si6O18)(BO3)3(OH)3(OH)
Sillimanite (TL)9.AF.05Al2(SiO4)O
Sodalite9.FB.10Na8(Al6Si6O24)Cl2
Spessartine9.AD.25Mn2+3Al2(SiO4)3
Spodumene9.DA.30LiAlSi2O6
var: Kunzite9.DA.30LiAlSi2O6
Spurrite9.AH.15Ca5(SiO4)2(CO3)
Staurolite9.AF.30Fe2+2Al9Si4O23(OH)
Stilpnomelane ?9.EG.40(K,Ca,Na)(Fe2+,Mg,Al)8(Si,Al)12(O,OH)36 · nH2O
Talc9.EC.05Mg3Si4O10(OH)2
Tephroite9.AC.05Mn2+2SiO4
Thorite9.AD.30Th(SiO4)
Titanite9.AG.15CaTi(SiO4)O
Topaz9.AF.35Al2(SiO4)(F,OH)2
Tremolite9.DE.10☐{Ca2}{Mg5}(Si8O22)(OH)2
Uranophane9.AK.15Ca(UO2)2(SiO3OH)2 · 5H2O
'Uvite Series' ?9..Ca(Mg3)MgAl5(Si6O18)(BO3)3(OH)3(F/OH)
Vesuvianite9.BG.35(Ca,Na,☐)19(Al,Mg,Fe3+)13(☐,B,Al,Fe3+)5(Si2O7)4(SiO4)10(OH,F,O)10
Wollastonite9.DG.05CaSiO3
Zircon9.AD.30Zr(SiO4)
var: Calyptolite9.AD.30Zr(SiO4)
var: Cyrtolite9.AD.30Zr[(SiO4),(OH)4]
Zoisite9.BG.10Ca2Al3[Si2O7][SiO4]O(OH)
var: Thulite9.BG.10{Ca2}{Al,Mn3+3}(Si2O7)(SiO4)O(OH)
Unclassified Minerals, Rocks, etc.
'Albite-Anorthite Series'-
'Alkali Feldspar'-
'Allanite Group'-{A12+REE3+}{M3+2M32+}(Si2O7)(SiO4)O(OH)
'Almandine-Spessartine Series'-
'Apatite'-Ca5(PO4)3(Cl/F/OH)
'Apophyllite'-
'Axinite Group' ?-
'Biotite'-K(Fe2+/Mg)2(Al/Fe3+/Mg)([Si/Al]Si2O10)(OH/F)2
'Calciomicrolite'-
'Chabazite'-
'var: Phacolite'-
'Chlorite Group'-
'Chlorophyllite'-
'Columbite-(Fe)-Columbite-(Mn) Series'-
'Columbite-Tantalite'-
'Copiapite Group'-
'Fahlunite'-(Mg,Fe)Al2Si3O10 · 2H2O
'Fayalite-Forsterite Series'-
'Feldspar Group'-
'var: Perthite'-
'Garnet Group'-X3Z2(SiO4)3
'Gmelinite' ?-
'Gummite'-
'Heulandite subgroup'-
'Hornblende'-
'Indicolite'-A(D3)G6(T6O18)(BO3)3X3Z
'K Feldspar'-
'var: Adularia'-KAlSi3O8
'Lanthanite' ?-
'Lepidolite'-
'Limonite'-(Fe,O,OH,H2O)
'Lithiophilite-Triphylite Series' ?-
'Manganese Oxides'-
'var: Manganese Dendrites'-
'Monazite'-
'Natromontebrasite'-
'Pinite'-
'Pumpellyite' ?-
'Scapolite'-
'Serpentine Subgroup'-D3[Si2O5](OH)4 D = Mg, Fe, Ni, Mn, Al, Zn
'Stilbite subgroup'-
'Tantalite'-(Mn,Fe)(Ta,Nb)2O6
'Tapiolite'-(Fe,Mn)(Ta,Nb)2O6
'Thorogummite'-(Th,U)(SiO4)1-x(OH)4x
'Tourmalinated Quartz'-
'Tourmaline'-A(D3)G6(Si6O18)(BO3)3X3Z
'var: Achroite'-A(D3)G6(T6O18)(BO3)3X3Z
'var: Rubellite'-A(D3)G6(T6O18)(BO3)3X3Z
'var: Verdelite'-A(D3)G6(T6O18)(BO3)3X3Z
'var: Watermelon Tourmaline'-A(D3)G6(T6O18)(BO3)3X3Z
'Zinnwaldite'-

List of minerals arranged by Dana 8th Edition classification

Group 1 - NATIVE ELEMENTS AND ALLOYS
Metals, other than the Platinum Group
Gold1.1.1.1Au
Silver ?1.1.1.2Ag
Semi-metals and non-metals
Graphite1.3.6.2C
Sulphur1.3.5.1S8
Group 2 - SULFIDES
AmBnXp, with (m+n):p = 2:1
Acanthite2.4.1.1Ag2S
AmXp, with m:p = 1:1
Breithauptite ?2.8.11.2NiSb
Covellite2.8.12.1CuS
Galena2.8.1.1PbS
Greenockite2.8.7.2CdS
Nickeline2.8.11.1NiAs
Pyrrhotite2.8.10.1Fe7S8
Realgar ?2.8.21.1As4S4
Sphalerite2.8.2.1ZnS
Wurtzite ?2.8.7.1(Zn,Fe)S
AmBnXp, with (m+n):p = 1:1
Chalcopyrite2.9.1.1CuFeS2
AmBnXp, with (m+n):p = 2:3
Bismuthinite2.11.2.3Bi2S3
AmBnXp, with (m+n):p = 1:2
Arsenopyrite2.12.4.1FeAsS
Cobaltite ?2.12.3.1CoAsS
Gersdorffite2.12.3.2NiAsS
Löllingite2.12.2.9FeAs2
Marcasite2.12.2.1FeS2
Molybdenite2.12.10.1MoS2
Nickelskutterudite ?2.12.17.2(Ni,Co,Fe)As3
Pyrite2.12.1.1FeS2
Rammelsbergite ?2.12.2.12NiAs2
Safflorite ?2.12.2.11(Co,Ni,Fe)As2
Skutterudite ?2.12.17.1CoAs3
Group 3 - SULFOSALTS
1 < ø < 2
Cuprobismutite3.8.2.1Cu8AgBi13S24
Group 4 - SIMPLE OXIDES
AX
Litharge4.2.4.1PbO
Massicot4.2.7.1PbO
A2X3
Arsenolite ?4.3.9.1As2O3
Bismite4.3.10.2Bi2O3
Claudetite ?4.3.10.1As2O3
Hematite4.3.1.2Fe2O3
Ilmenite4.3.5.1Fe2+TiO3
Maghemite4.3.7.1(Fe3+0.670.33)Fe3+2O4
Pyrophanite4.3.5.3Mn2+TiO3
Sillénite ?4.3.12.1Bi12SiO20
AX2
Anatase4.4.4.1TiO2
Cassiterite4.4.1.5SnO2
Plattnerite4.4.1.6PbO2
Pyrolusite4.4.1.4Mn4+O2
Rutile4.4.1.1TiO2
var: Strüverite4.4.1.3(Ti,Ta,Fe)O2
Group 5 - OXIDES CONTAINING URANIUM OR THORIUM
AXO2·xH2O
Uraninite5.1.1.1UO2
AX6O19·xH2O
Becquerelite5.7.1.2Ca(UO2)6O4(OH)6 · 8H2O
AX7O22·xH2O
Vandendriesscheite5.8.1.1PbU7O22 · 12H2O
Miscellaneous
Fourmarierite5.9.2.1Pb(UO2)4O3(OH)4 · 4H2O
Group 6 - HYDROXIDES AND OXIDES CONTAINING HYDROXYL
XO(OH)
Goethite6.1.1.2α-Fe3+O(OH)
Groutite6.1.1.3Mn3+O(OH)
Manganite ?6.1.3.1Mn3+O(OH)
Group 7 - MULTIPLE OXIDES
AB2X4
Chrysoberyl7.2.9.1BeAl2O4
Gahnite7.2.1.4ZnAl2O4
Galaxite ?7.2.1.2Mn2+Al2O4
Jacobsite7.2.2.2Mn2+Fe3+2O4
Magnetite7.2.2.3Fe2+Fe3+2O4
Minium7.2.8.1Pb3O4
Spinel7.2.1.1MgAl2O4
(AB)2X3
Birnessite7.5.3.1(Na,Ca)0.5(Mn4+,Mn3+)2O4 · 1.5H2O
AB3X7
Todorokite ?7.8.1.1(Na,Ca,K,Ba,Sr)1-x(Mn,Mg,Al)6O12 · 3-4H2O
Group 8 - MULTIPLE OXIDES CONTAINING NIOBIUM,TANTALUM OR TITANIUM
ABO4
Bismutotantalite8.1.6.3Bi(Ta,Nb)O4
Ishikawaite8.1.4.1U4+Fe2+Nb2O8
Ixiolite8.1.10.1(Ta,Nb,Sn,Fe,Mn)4O8
Liandratite8.1.9.1U(Nb,Ta)2O8
Petscheckite ?8.1.9.2UFe(Nb,Ta)2O8
Samarskite-(Y)8.1.11.1YFe3+Nb2O8
Wodginite8.1.8.1Mn2+Sn4+Ta2O8
'Yttrocolumbite-(Y)' ?8.1.3.2Y(U4+,Fe2+)Nb2O8
A2B2O6(O,OH,F)
'Microlite Group'8.2.2.1A2-mTa2X6-wZ-n
'Pyrochlore Group'8.2.1.1A2Nb2(O,OH)6Z
'Uranpyrochlore (of Hogarth 1977)'8.2.1.7(Ca,U,Ce)2(Nb,Ti,Ta)2O6(OH,F)
AB2O6
Columbite-(Fe)8.3.2.2Fe2+Nb2O6
Euxenite-(Y) ?8.3.8.2(Y,Ca,Ce,U,Th)(Nb,Ta,Ti)2O6
Tantalite-(Fe)8.3.2.1Fe2+Ta2O6
Tantalite-(Mn)8.3.2.3Mn2+Ta2O6
Tanteuxenite-(Y)8.3.8.3Y(Ta,Nb,Ti)2(O,OH)6
Tapiolite-(Fe)8.3.1.1(Fe,Mn)(Ta,Nb)2O6
Group 9 - NORMAL HALIDES
AX2
Fluorite9.2.1.1CaF2
Group 14 - ANHYDROUS NORMAL CARBONATES
A(XO3)
Calcite14.1.1.1CaCO3
Cerussite14.1.3.4PbCO3
Rhodochrosite14.1.1.4MnCO3
Siderite14.1.1.3FeCO3
Smithsonite ?14.1.1.6ZnCO3
AB(XO3)2
Dolomite14.2.1.1CaMg(CO3)2
Kutnohorite14.2.1.3CaMn2+(CO3)2
Group 16a - ANHYDROUS CARBONATES CONTAINING HYDROXYL OR HALOGEN
Bastnäsite-(Ce)16a.1.1.1Ce(CO3)F
Azurite16a.2.1.1Cu3(CO3)2(OH)2
Beyerite ?16a.2.3.1Ca(BiO)2(CO3)2
Bismutite16a.3.5.1(BiO)2CO3
Malachite16a.3.1.1Cu2(CO3)(OH)2
Aurichalcite16a.4.2.1(Zn,Cu)5(CO3)2(OH)6
Hydrozincite16a.4.1.1Zn5(CO3)2(OH)6
Group 28 - ANHYDROUS ACID AND NORMAL SULFATES
AXO4
Anglesite28.3.1.3PbSO4
Anhydrite28.3.2.1CaSO4
Baryte28.3.1.1BaSO4
Group 29 - HYDRATED ACID AND NORMAL SULFATES
AXO4·xH2O
Epsomite29.6.11.1MgSO4 · 7H2O
Goslarite ?29.6.11.2ZnSO4 · 7H2O
Gypsum29.6.3.1CaSO4 · 2H2O
Hexahydrite ?29.6.8.1MgSO4 · 6H2O
Melanterite29.6.10.1Fe2+(H2O)6SO4 · H2O
AB2(XO4)4·H2O
Pickeringite29.7.3.1MgAl2(SO4)4 · 22H2O
Group 30 - ANHYDROUS SULFATES CONTAINING HYDROXYL OR HALOGEN
(AB)2(XO4)Zq
Jarosite ?30.2.5.1KFe3+ 3(SO4)2(OH)6
Linarite ?30.2.3.1PbCu(SO4)(OH)2
Group 31 - HYDRATED SULFATES CONTAINING HYDROXYL OR HALOGEN
(AB)3(XO4)2Zq·xH2O
Johannite ?31.8.2.1Cu(UO2)2(SO4)2(OH)2 · 8H2O
Group 38 - ANHYDROUS NORMAL PHOSPHATES, ARSENATES, AND VANADATES
ABXO4
Ferrisicklerite38.1.4.1Li1-x(Fe3+xFe2+1-x)PO4
Lithiophilite38.1.1.2LiMn2+PO4
Natrophilite38.1.1.3NaMn2+PO4
Sicklerite38.1.4.2Li1-x(Mn3+xMn2+1-x)PO4
Triphylite38.1.1.1LiFe2+PO4
(AB)3(XO4)2
Graftonite ?38.3.3.1Fe2+Fe2+2(PO4)2
AXO4
Heterosite38.4.1.1(Fe3+,Mn3+)PO4
Monazite-(Ce)38.4.3.1Ce(PO4)
Purpurite38.4.1.2Mn3+(PO4)
Group 39 - HYDRATED ACID PHOSPHATES,ARSENATES AND VANADATES
(AB)5[HXO4]2[XO4]2.xH2O
Hureaulite39.2.1.1(Mn,Fe)5(PO4)2(HPO4)2 · 4H2O
Group 40 - HYDRATED NORMAL PHOSPHATES,ARSENATES AND VANADATES
AB2(XO4)2·xH2O, containing (UO2)2+
Autunite40.2a.1.1Ca(UO2)2(PO4)2 · 11H2O
Fairfieldite40.2.2.1Ca2Mn2+(PO4)2 · 2H2O
Messelite40.2.2.2Ca2Fe2+(PO4)2 · 2H2O
Meta-autunite40.2a.1.2Ca(UO2)2(PO4)2 · 6-8H2O
Metatorbernite40.2a.13.2Cu(UO2)2(PO4)2 · 8H2O
Parsonsite40.2a.31.1Pb2(UO2)(PO4)2
Phosphophyllite40.2.7.1Zn2Fe(PO4)2 · 4H2O
Torbernite40.2a.13.1Cu(UO2)2(PO4)2 · 12H2O
A3(XO4)2·xH2O
Annabergite40.3.6.4Ni3(AsO4)2 · 8H2O
Erythrite40.3.6.3Co3(AsO4)2 · 8H2O
Ludlamite40.3.5.1Fe2+3(PO4)2 · 4H2O
Reddingite ?40.3.2.3(Mn2+,Fe2+)3(PO4)2 · 3H2O
Vivianite40.3.6.1Fe2+3(PO4)2 · 8H2O
(AB)5(XO4)2·xH2O
Grayite40.4.7.4(Th,Pb,Ca)(PO4) · H2O
Scorodite40.4.1.3Fe3+AsO4 · 2H2O
Group 41 - ANHYDROUS PHOSPHATES, ETC.CONTAINING HYDROXYL OR HALOGEN
(AB)2(XO4)Zq
Amblygonite ?41.5.8.1LiAl(PO4)F
Brazilianite41.5.7.1NaAl3(PO4)2(OH)4
Herderite ?41.5.4.1CaBePO4(F,OH)
Hydroxylherderite41.5.4.2CaBe(PO4)(OH,F)
Lacroixite41.5.5.1NaAl(PO4)F
Montebrasite41.5.8.2LiAl(PO4)(OH)
'Natromontebrasite'41.5.8.3
A2(XO4)Zq
Augelite41.6.8.1Al2(PO4)(OH)3
Triplite41.6.1.2Mn2+2(PO4)F
(AB)7(XO4)4Zq
Arrojadite-(KFe) ?41.7.2.1{KNa}{Fe2+◻}{Ca}{Na2◻}{Fe2+13}{Al}(PO4)11(HPO4)(OH)2
Dickinsonite-(KMnNa)41.7.2.2{KNa}{Mn2+◻}{Ca}{Na3}{Mn2+13}{Al}(PO4)12(OH)2
Palermoite ?41.7.1.1(Li,Na)2(Sr,Ca)Al4(PO4)4(OH)4
A5(XO4)3Zq
Fluorapatite41.8.1.1Ca5(PO4)3F
Hydroxylapatite41.8.1.3Ca5(PO4)3(OH)
Mimetite41.8.4.2Pb5(AsO4)3Cl
Pyromorphite41.8.4.1Pb5(PO4)3Cl
(AB)5(XO4)3Zq
Rockbridgeite ?41.9.2.1Fe2+Fe3+4(PO4)3(OH)5
(AB)3(XO4)2Zq
Scorzalite ?41.10.1.2Fe2+Al2(PO4)2(OH)2
Group 42 - HYDRATED PHOSPHATES, ETC.CONTAINING HYDROXYL OR HALOGEN
(AB)5(XO4)2Zq·xH2O
Morinite ?42.4.2.1NaCa2Al2(PO4)2(OH)F4 · 2H2O
Phosphuranylite42.4.8.1(H3O)3KCa(UO2)7(PO4)4O4 · 8H2O
A2(XO4)Zq·xH2O
Moraesite42.6.1.1Be2(PO4)(OH) · 4H2O
(AB)2(XO4)Zq·xH2O
Crandallite ?42.7.3.1CaAl3(PO4)(PO3OH)(OH)6
Eosphorite42.7.1.2Mn2+Al(PO4)(OH)2 · H2O
Roscherite ?42.7.7.1Ca2Mn2+5Be4(PO4)6(OH)4 · 6H2O
Wardite42.7.8.2NaAl3(PO4)2(OH)4 · 2H2O
(AB)5(XO4)3Zq·xH2O
Mitridatite42.8.4.1Ca2Fe3+3(PO4)3O2 · 3H2O
(AB)7(XO4)4Zq·xH2O
Planerite ?42.9.3.6Al6(PO4)2(HPO4)2(OH)8 · 4 H2O
(AB)3(XO4)2Zq·xH2O
Beraunite ?42.11.16.1Fe2+Fe3+5(PO4)4(OH)5 · 6H2O
Laueite42.11.10.1Mn2+Fe3+2(PO4)2(OH)2 · 8H2O
Stewartite ?42.11.10.2Mn2+Fe3+2(PO4)2(OH)2 · 8H2O
Strunzite42.11.9.1Mn2+Fe3+2(PO4)2(OH)2 · 6H2O
Whitmoreite42.11.20.1Fe2+Fe3+2(PO4)2(OH)2 · 4H2O
Xanthoxenite ?42.11.15.1Ca4Fe3+2(PO4)4(OH)2 · 3H2O
Group 43 - COMPOUND PHOSPHATES, ETC.
Hydrated Compound Phosphates, etc·, Containing Hydroxyl or Halogen
Diadochite43.5.2.1Fe3+2(PO4)(SO4)(OH) · 5H2O
Pitticite ?43.5.3.1(Fe, AsO4, H2O) (?)
Group 48 - ANHYDROUS MOLYBDATES AND TUNGSTATES
AXO4
Powellite48.1.2.2Ca(MoO4)
Scheelite48.1.2.1Ca(WO4)
Wulfenite ?48.1.3.1Pb(MoO4)
Group 49 - HYDRATED MOLYBDATES AND TUNGSTATES
Hydrated Normal Molybdates and Tungstates
Ferrimolybdite49.2.1.1Fe2(MoO4)3 · nH2O
Group 51 - NESOSILICATES Insular SiO4 Groups Only
Insular SiO4 Groups Only with cations in [4] coordination
Eucryptite ?51.1.1.3LiAlSiO4
Phenakite51.1.1.1Be2SiO4
Insular SiO4 Groups Only with all cations in octahedral [6] coordination
Tephroite51.3.1.4Mn2+2SiO4
Insular SiO4 Groups Only with cations in [6] and >[6] coordination
Almandine51.4.3a.2Fe2+3Al2(SiO4)3
Grossular51.4.3b.2Ca3Al2(SiO4)3
Spessartine51.4.3a.3Mn2+3Al2(SiO4)3
Insular SiO4 Groups Only with cations in >[6] coordination
Larnite51.5.1.1Ca2SiO4
Thorite51.5.2.3Th(SiO4)
'Thorogummite'51.5.2.5(Th,U)(SiO4)1-x(OH)4x
Zircon51.5.2.1Zr(SiO4)
Group 52 - NESOSILICATES Insular SiO4 Groups and O,OH,F,H2O
Insular SiO4 Groups and O, OH, F, and H2O with cations in [4] and >[4] coordination
Euclase ?52.2.1.1BeAl(SiO4)(OH)
Kyanite52.2.2c.1Al2(SiO4)O
Sillimanite (TL)52.2.2a.1Al2(SiO4)O
Staurolite52.2.3.1Fe2+2Al9Si4O23(OH)
Insular SiO4 Groups and O, OH, F, and H2O with cations in [6] coordination only
Alleghanyite52.3.2b.1Mn2+5(SiO4)2(OH)2
Topaz52.3.1.1Al2(SiO4)(F,OH)2
Insular SiO4 Groups and O, OH, F, and H2O with cations in [6] and/or >[6] coordination
Cerite-(Ce) ?52.4.6.1(Ce,Ca)9(Mg,Fe)(SiO4)3(HSiO4)4(OH)3
Titanite52.4.3.1CaTi(SiO4)O
Group 53 - NESOSILICATES Insular SiO4 Groups and Other Anions or Complex Cations
Insular SiO4 Groups and Other Anions of Complex Cations with (CO3)
Spurrite53.1.1.1Ca5(SiO4)2(CO3)
Insular SiO4 Groups and Other Anions of Complex Cations with (UO2)
Uranophane53.3.1.2Ca(UO2)2(SiO3OH)2 · 5H2O
Group 54 - NESOSILICATES Borosilicates and Some Beryllosilicates
Borosilicates and Some Beryllosilicates with B in [4] coordination
Datolite54.2.1a.1CaB(SiO4)(OH)
Group 55 - SOROSILICATES Si2O7 Groups,Generally with no Additional Anions
Si2O7 Groups, Generally with No Additional Anions with cations in [8] and lower coordination
Gehlenite55.4.1.2Ca2Al(AlSiO7)
Group 56 - SOROSILICATES Si2O7 Groups, With Additional O, OH, F and H2O
Si2O7 Groups and O, OH, F, and H2O with cations in [4] coordination
Bertrandite56.1.1.1Be4(Si2O7)(OH)2
Hemimorphite56.1.2.1Zn4Si2O7(OH)2 · H2O
Si2O7 Groups and O, OH, F, and H2O with cations in [4] and/or >[4] coordination
Axinite-(Fe)56.2.2.1Ca2Fe2+Al2BSi4O15OH
Group 58 - SOROSILICATES Insular, Mixed, Single, and Larger Tetrahedral Groups
Insular, Mixed, Single, and Larger Tetrahedral Groups with cations in [6] and higher coordination; single and double groups (n = 1, 2)
Allanite-(Ce)58.2.1a.1{CaCe}{Al2Fe2+}(Si2O7)(SiO4)O(OH)
Clinozoisite58.2.1a.4{Ca2}{Al3}(Si2O7)(SiO4)O(OH)
Epidote58.2.1a.7{Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
Piemontite58.2.1a.11{Ca2}{Al2Mn3+}(Si2O7)(SiO4)O(OH)
Vesuvianite58.2.4.1(Ca,Na,☐)19(Al,Mg,Fe3+)13(☐,B,Al,Fe3+)5(Si2O7)4(SiO4)10(OH,F,O)10
Zoisite58.2.1b.1Ca2Al3[Si2O7][SiO4]O(OH)
Group 61 - CYCLOSILICATES Six-Membered Rings
Six-Membered Rings with [Si6O18] rings; possible (OH) and Al substitution
Bazzite61.1.1.2Be3Sc2(Si6O18)
Beryl61.1.1.1Be3Al2(Si6O18)
Six-Membered Rings with Al substituted rings
Cordierite61.2.1.1(Mg,Fe)2Al3(AlSi5O18)
Six-Membered Rings with borate groups
Dravite61.3.1.9Na(Mg3)Al6(Si6O18)(BO3)3(OH)3(OH)
Elbaite61.3.1.8Na(Li1.5Al1.5)Al6(Si6O18)(BO3)3(OH)3(OH)
Foitite61.3.1.1(□,Na)(Fe2+2Al)Al6(Si6O18)(BO3)3(OH)3OH
Schorl61.3.1.10Na(Fe2+3)Al6(Si6O18)(BO3)3(OH)3(OH)
'Uvite Series' ?61.3.1.3Ca(Mg3)MgAl5(Si6O18)(BO3)3(OH)3(F/OH)
Group 65 - INOSILICATES Single-Width,Unbranched Chains,(W=1)
Single-Width Unbranched Chains, W=1 with chains P=2
Aegirine65.1.3c.2NaFe3+Si2O6
Augite65.1.3a.3(CaxMgyFez)(Mgy1Fez1)Si2O6
Diopside65.1.3a.1CaMgSi2O6
Enstatite65.1.2.1MgSiO3
Johannsenite ?65.1.3a.4CaMn2+Si2O6
Spodumene65.1.4.1LiAlSi2O6
Single-Width Unbranched Chains, W=1 with chains P=3
Bustamite65.2.1.2CaMn2+(Si2O6)
Wollastonite65.2.1.1cCaSiO3
Single-Width Unbranched Chains, W=1 with chains P=5
Babingtonite65.4.1.2Ca2(Fe,Mn)FeSi5O14(OH)
Rhodonite65.4.1.1Mn2+SiO3
Single-Width Unbranched Chains, W=1 with chains P=7
Pyroxmangite65.6.1.1MnSiO3
Group 66 - INOSILICATES Double-Width,Unbranched Chains,(W=2)
Amphiboles - Mg-Fe-Mn-Li subgroup
Anthophyllite66.1.2.1☐{Mg2}{Mg5}(Si8O22)(OH)2
Cummingtonite66.1.1.1☐{Mg2}{Mg5}(Si8O22)(OH)2
Ferri-ghoseite66.1.1.4☐[Mn2+Na][Mg4Fe3+]Si8O22(OH)2
Gedrite66.1.2.5☐{Mg2}{Mg3Al2}(Al2Si6O22)(OH)2
Kaersutite66.1.3a.18{Na}{Ca2}{Mg3AlTi}(Al2Si6O22)O2
Tremolite66.1.3a.1☐{Ca2}{Mg5}(Si8O22)(OH)2
Group 70 - INOSILICATES Column or Tube Structures
Column or Tube Structures with chains linked by Be
Bavenite70.5.3.1Ca4Be2Al2Si9O26(OH)2
Group 71 - PHYLLOSILICATES Sheets of Six-Membered Rings
Sheets of 6-membered rings with 1:1 layers
Bismutoferrite71.1.3.1Fe3+2Bi(SiO4)2(OH)
Caryopilite71.1.2b.1Mn2+3Si2O5(OH)4
Chrysotile ?71.1.5.1Mg3(Si2O5)(OH)4
Cronstedtite71.1.4.7Fe2+2Fe3+((Si,Fe3+)2O5)(OH)4
Dickite71.1.1.1Al2(Si2O5)(OH)4
'Halloysite'71.1.1.4Al2(Si2O5)(OH)4
Sheets of 6-membered rings with 2:1 layers
Annite71.2.2b.3KFe2+3(AlSi3O10)(OH)2
Bityite71.2.2c.3LiCaAl2(AlBeSi2O10)(OH)2
Masutomilite71.2.2b.12(K,Rb)(Li,Mn3+,Al)3(AlSi3O10)(F,OH)2
Muscovite71.2.2a.1KAl2(AlSi3O10)(OH)2
Paragonite71.2.2a.2NaAl2(AlSi3O10)(OH)2
Phlogopite71.2.2b.1KMg3(AlSi3O10)(OH)2
Pyrophyllite71.2.1.1Al2Si4O10(OH)2
Talc71.2.1.3Mg3Si4O10(OH)2
Sheets of 6-membered rings with 2:1 clays
Montmorillonite71.3.1a.2(Na,Ca)0.33(Al,Mg)2(Si4O10)(OH)2 · nH2O
Nontronite71.3.1a.3Na0.3Fe2((Si,Al)4O10)(OH)2 · nH2O
Sheets of 6-membered rings interlayered 1:1, 2:1, and octahedra
Cookeite71.4.1.2(Al2Li)Al2(AlSi3O10)(OH)8
Group 72 - PHYLLOSILICATES Two-Dimensional Infinite Sheets with Other Than Six-Membered Rings
Two-Dimensional Infinite Sheets with Other Than Six-Membered Rings with 4-membered rings
Prehnite72.1.3.1Ca2Al2Si3O10(OH)2
Two-Dimensional Infinite Sheets with Other Than Six-Membered Rings with 3-, 4-, or 5-membered rings and 8-membered rings
Fluorapophyllite-(K)72.3.1.1KCa4(Si8O20)(F,OH) · 8H2O
Two-Dimensional Infinite Sheets with Other Than Six-Membered Rings with tetrahedral Al cross-linking
Petalite72.6.1.1LiAl(Si4O10)
Group 74 - PHYLLOSILICATES Modulated Layers
Modulated Layers with joined islands
Stilpnomelane ?74.1.1.1(K,Ca,Na)(Fe2+,Mg,Al)8(Si,Al)12(O,OH)36 · nH2O
Modulated Layers with joined strips
Chrysocolla74.3.2.1Cu2-xAlx(H2-xSi2O5)(OH)4 · nH2O
Group 75 - TECTOSILICATES Si Tetrahedral Frameworks
Si Tetrahedral Frameworks - SiO2 with [4] coordinated Si
Quartz75.1.3.1SiO2
Si Tetrahedral Frameworks - SiO2 with H2O and organics
Opal75.2.1.1SiO2 · nH2O
Group 76 - TECTOSILICATES Al-Si Framework
Al-Si Framework with Al-Si frameworks
Albite76.1.3.1Na(AlSi3O8)
Microcline76.1.1.5K(AlSi3O8)
var: Hyalophane76.1.1.3(K,Ba)[Al(Si,Al)Si2O8]
Orthoclase76.1.1.1K(AlSi3O8)
Al-Si Framework Feldspathoids and related species
Nepheline76.2.1.2Na3K(Al4Si4O16)
Sodalite76.2.3.1Na8(Al6Si6O24)Cl2
Group 77 - TECTOSILICATES Zeolites
Zeolite group - True zeolites
Analcime77.1.1.1Na(AlSi2O6) · H2O
Gobbinsite77.1.3.4Na5(Si11Al5)O32 · 11H2O
Gonnardite77.1.5.7(Na,Ca)2(Si,Al)5O10 · 3H2O
Laumontite77.1.1.4CaAl2Si4O12 · 4H2O
Natrolite77.1.5.1Na2Al2Si3O10 · 2H2O
Pollucite77.1.1.2(Cs,Na)2(Al2Si4O12) · 2H2O
Group 78 - Unclassified Silicates
Bementite ?78.5.2.1Mn7Si6O15(OH)8
Unclassified Minerals, Mixtures, etc.
Actinolite-☐{Ca2}{Mg4.5-2.5Fe0.5-2.5}(Si8O22)(OH)2
Albite
var: Cleavelandite
-Na(AlSi3O8)
var: Oligoclase-(Na,Ca)[Al(Si,Al)Si2O8]
var: Peristerite-Na(AlSi3O8)
'Albite-Anorthite Series'-
'Alkali Feldspar'-
'Allanite Group'-{A12+REE3+}{M3+2M32+}(Si2O7)(SiO4)O(OH)
'Almandine-Spessartine Series'-
Anorthite-Ca(Al2Si2O8)
var: Labradorite-(Ca,Na)[Al(Al,Si)Si2O8]
'Apatite'-Ca5(PO4)3(Cl/F/OH)
'Apophyllite'-
Aragonite-CaCO3
Arsenopyrite
var: Danaite
-(Fe0.90Co0.10)AsS - (Fe0.65Co0.35)AsS
Augite
var: Fassaite
-(Ca,Na)(Mg,Fe2+,Al,Fe3+,Ti)[(Si,Al)2O6]
var: Titanian Augite-(Ca,Na)(Mg,Ti, Fe,Al,)(Si,Al)2O6
'Axinite Group' ?-
Beryl
var: Aquamarine
-Be3Al2Si6O18
var: Goshenite-Be3Al2(Si6O18)
var: Heliodor-Be3Al2(Si6O18)
var: Morganite-Be3Al2(Si6O18)
'Biotite'-K(Fe2+/Mg)2(Al/Fe3+/Mg)([Si/Al]Si2O10)(OH/F)2
'Calciomicrolite'-
'Chabazite'-
'var: Phacolite'-
'Chlorite Group'-
'Chlorophyllite'-
'Columbite-(Fe)-Columbite-(Mn) Series'-
'Columbite-Tantalite'-
'Copiapite Group'-
'Fahlunite'-(Mg,Fe)Al2Si3O10 · 2H2O
'Fayalite-Forsterite Series'-
'Feldspar Group'-
'var: Perthite'-
Fluorapatite
var: Mn-bearing Fluorapatite
-(Ca,Mn2+)5(PO4)3(F,Cl,OH) or Ca5([P,Mn5+]O4)3(F,Cl,OH)
Fluorite
var: Chlorophane
-CaF2
'Garnet Group'-X3Z2(SiO4)3
'Gmelinite' ?-
Grunerite-☐{Fe2+2}{Fe2+5}(Si8O22)(OH)2
'Gummite'-
Gypsum
var: Selenite
-CaSO4 · 2H2O
Hastingsite-{Na}{Ca2}{Fe2+4Fe3+}(Al2Si6O22)(OH)2
'Heulandite subgroup'-
'Hornblende'-
Hydrokenoelsmoreite ?-2W2O6(H2O)
var: Ferritungstite ?-2W2O6(H2O)
Ilmenite
var: Manaccanite
-Fe2+TiO3
'Indicolite'-A(D3)G6(T6O18)(BO3)3X3Z
Ixiolite
var: Wolframoixiolite
-(Nb,W,Ta,Fe,Mn,Nb)2O4
'K Feldspar'-
'var: Adularia'-KAlSi3O8
Kaolinite-Al2(Si2O5)(OH)4
'Lanthanite' ?-
'Lepidolite'-
'Limonite'-(Fe,O,OH,H2O)
'Lithiophilite-Triphylite Series' ?-
Magnesio-hornblende-☐{Ca2}{Mg4Al}(AlSi7O22)(OH)2
'Manganese Oxides'-
'var: Manganese Dendrites'-
Meionite-Ca4Al6Si6O24CO3
Microcline
var: Amazonite
-K(AlSi3O8)
'Microlite Group
var: Uranmicrolite (of Hogarth 1977)'
-A2-mTa2X6-wZ-n
'Monazite'-
Muscovite
var: Schernikite (FRL)
-KAl2(AlSi3O10)(OH)2
var: Sericite-KAl2(AlSi3O10)(OH)2
Opal
var: Opal-AN
-SiO2 · nH2O
Oxy-dravite-Na(MgAl2)MgAl5(Si6O18)(BO3)3(OH)3O
'Pinite'-
'Pumpellyite' ?-
Quartz
var: Amethyst
-SiO2
var: Blue Quartz-SiO2
var: Chalcedony-SiO2
var: Citrine-SiO2
var: Ferruginous Quartz-SiO2
var: Milky Quartz-SiO2
var: Rock Crystal-SiO2
var: Rose Quartz-SiO2
var: Smoky Quartz-SiO2
'Scapolite'-
'Serpentine Subgroup'-D3[Si2O5](OH)4 D = Mg, Fe, Ni, Mn, Al, Zn
Spodumene
var: Kunzite
-LiAlSi2O6
'Stilbite subgroup'-
'Tantalite'-(Mn,Fe)(Ta,Nb)2O6
'Tapiolite'-(Fe,Mn)(Ta,Nb)2O6
'Tourmalinated Quartz'-
'Tourmaline'-A(D3)G6(Si6O18)(BO3)3X3Z
'var: Achroite'-A(D3)G6(T6O18)(BO3)3X3Z
'var: Rubellite'-A(D3)G6(T6O18)(BO3)3X3Z
'var: Verdelite'-A(D3)G6(T6O18)(BO3)3X3Z
'var: Watermelon Tourmaline'-A(D3)G6(T6O18)(BO3)3X3Z
Wurtzite
var: Voltzite ?
-(Zn,Fe)S
Xenotime-(Y) ?-Y(PO4)
'Zinnwaldite'-
Zircon
var: Calyptolite
-Zr(SiO4)
var: Cyrtolite-Zr[(SiO4),(OH)4]
Zoisite
var: Thulite
-{Ca2}{Al,Mn3+3}(Si2O7)(SiO4)O(OH)

List of minerals for each chemical element

HHydrogen
H Muscovite (var: Schernikite)KAl2(AlSi3O10)(OH)2
H ElbaiteNa(Li1.5Al1.5)Al6(Si6O18)(BO3)3(OH)3(OH)
H Anthophyllite☐{Mg2}{Mg5}(Si8O22)(OH)2
H MuscoviteKAl2(AlSi3O10)(OH)2
H SchorlNa(Fe32+)Al6(Si6O18)(BO3)3(OH)3(OH)
H TopazAl2(SiO4)(F,OH)2
H Cookeite(Al2Li)Al2(AlSi3O10)(OH)8
H BertranditeBe4(Si2O7)(OH)2
H UranophaneCa(UO2)2(SiO3OH)2 · 5H2O
H Pollucite(Cs,Na)2(Al2Si4O12) · 2H2O
H BecquereliteCa(UO2)6O4(OH)6 · 8H2O
H BaveniteCa4Be2Al2Si9O26(OH)2
H VivianiteFe32+(PO4)2 · 8H2O
H WhitmoreiteFe2+Fe23+(PO4)2(OH)2 · 4H2O
H Fahlunite(Mg,Fe)Al2Si3O10 · 2H2O
H TorberniteCu(UO2)2(PO4)2 · 12H2O
H Fluorapatite (var: Mn-bearing Fluorapatite)(Ca,Mn2+)5(PO4)3(F,Cl,OH) or Ca5([P,Mn5+]O4)3(F,Cl,OH)
H Zoisite (var: Thulite){Ca2}{Al,Mn33+}(Si2O7)(SiO4)O(OH)
H Meta-autuniteCa(UO2)2(PO4)2 · 6-8H2O
H Epidote{Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
H AnalcimeNa(AlSi2O6) · H2O
H MetatorberniteCu(UO2)2(PO4)2 · 8H2O
H Allanite-(Ce){CaCe}{Al2Fe2+}(Si2O7)(SiO4)O(OH)
H Opal (var: Opal-AN)SiO2 · nH2O
H ZoisiteCa2Al3[Si2O7][SiO4]O(OH)
H OpalSiO2 · nH2O
H AutuniteCa(UO2)2(PO4)2 · 11H2O
H Montmorillonite(Na,Ca)0.33(Al,Mg)2(Si4O10)(OH)2 · nH2O
H BityiteLiCaAl2(AlBeSi2O10)(OH)2
H Pyrochlore GroupA2Nb2(O,OH)6Z
H AnniteKFe32+(AlSi3O10)(OH)2
H Clinozoisite{Ca2}{Al3}(Si2O7)(SiO4)O(OH)
H Zircon (var: Cyrtolite)Zr[(SiO4),(OH)4]
H KaoliniteAl2(Si2O5)(OH)4
H Limonite(Fe,O,OH,H2O)
H MelanteriteFe2+(H2O)6SO4 · H2O
H PickeringiteMgAl2(SO4)4 · 22H2O
H FairfielditeCa2Mn2+(PO4)2 · 2H2O
H FerrimolybditeFe2(MoO4)3 · nH2O
H AugeliteAl2(PO4)(OH)3
H ScoroditeFe3+AsO4 · 2H2O
H Goethiteα-Fe3+O(OH)
H StauroliteFe22+Al9Si4O23(OH)
H ErythriteCo3(AsO4)2 · 8H2O
H BabingtoniteCa2(Fe,Mn)FeSi5O14(OH)
H MontebrasiteLiAl(PO4)(OH)
H DraviteNa(Mg3)Al6(Si6O18)(BO3)3(OH)3(OH)
H ApatiteCa5(PO4)3(Cl/F/OH)
H LaueiteMn2+Fe23+(PO4)2(OH)2 · 8H2O
H Actinolite☐{Ca2}{Mg4.5-2.5Fe0.5-2.5}(Si8O22)(OH)2
H VandendriesscheitePbU7O22 · 12H2O
H StrunziteMn2+Fe23+(PO4)2(OH)2 · 6H2O
H DiadochiteFe23+(PO4)(SO4)(OH) · 5H2O
H MalachiteCu2(CO3)(OH)2
H MesseliteCa2Fe2+(PO4)2 · 2H2O
H PrehniteCa2Al2Si3O10(OH)2
H Vesuvianite(Ca,Na,☐)19(Al,Mg,Fe3+)13(☐,B,Al,Fe3+)5(Si2O7)4(SiO4)10(OH,F,O)10
H Aurichalcite(Zn,Cu)5(CO3)2(OH)6
H ChrysocollaCu2-xAlx(H2-xSi2O5)(OH)4 · nH2O
H HemimorphiteZn4Si2O7(OH)2 · H2O
H HydrozinciteZn5(CO3)2(OH)6
H BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg)([Si/Al]Si2O10)(OH/F)2
H Phosphuranylite(H3O)3KCa(UO2)7(PO4)4O4 · 8H2O
H Muscovite (var: Sericite)KAl2(AlSi3O10)(OH)2
H NatroliteNa2Al2Si3O10 · 2H2O
H Gonnardite(Na,Ca)2(Si,Al)5O10 · 3H2O
H Oxy-draviteNa(MgAl2)MgAl5(Si6O18)(BO3)3(OH)3O
H HydroxylherderiteCaBe(PO4)(OH,F)
H MitridatiteCa2Fe33+(PO4)3O2 · 3H2O
H Grayite(Th,Pb,Ca)(PO4) · H2O
H Thorogummite(Th,U)(SiO4)1-x(OH)4x
H Cummingtonite☐{Mg2}{Mg5}(Si8O22)(OH)2
H FourmarieritePb(UO2)4O3(OH)4 · 4H2O
H Piemontite{Ca2}{Al2Mn3+}(Si2O7)(SiO4)O(OH)
H GypsumCaSO4 · 2H2O
H DatoliteCaB(SiO4)(OH)
H Allanite Group{A12+REE3+}{M23+M32+}(Si2O7)(SiO4)O(OH)
H PhlogopiteKMg3(AlSi3O10)(OH)2
H Ferri-ghoseite☐[Mn2+Na][Mg4Fe3+]Si8O22(OH)2
H PhosphophylliteZn2Fe(PO4)2 · 4H2O
H HydroxylapatiteCa5(PO4)3(OH)
H LaumontiteCaAl2Si4O12 · 4H2O
H Foitite(□,Na)(Fe22+Al)Al6(Si6O18)(BO3)3(OH)3OH
H GobbinsiteNa5(Si11Al5)O32 · 11H2O
H Tanteuxenite-(Y)Y(Ta,Nb,Ti)2(O,OH)6
H ParsonsitePb2(UO2)(PO4)2
H Gedrite☐{Mg2}{Mg3Al2}(Al2Si6O22)(OH)2
H Hastingsite{Na}{Ca2}{Fe42+Fe3+}(Al2Si6O22)(OH)2
H DickiteAl2(Si2O5)(OH)4
H NontroniteNa0.3Fe2((Si,Al)4O10)(OH)2 · nH2O
H Masutomilite(K,Rb)(Li,Mn3+,Al)3(AlSi3O10)(F,OH)2
H Axinite-(Fe)Ca2Fe2+Al2BSi4O15OH
H Gypsum (var: Selenite)CaSO4 · 2H2O
H HalloysiteAl2(Si2O5)(OH)4
H Magnesio-hornblende☐{Ca2}{Mg4Al}(AlSi7O22)(OH)2
H MoraesiteBe2(PO4)(OH) · 4H2O
H TalcMg3Si4O10(OH)2
H Serpentine SubgroupD3[Si2O5](OH)4 D = Mg, Fe, Ni, Mn, Al, Zn
H BazziteBe3Sc2(Si6O18)
H Tremolite☐{Ca2}{Mg5}(Si8O22)(OH)2
H Fluorapophyllite-(K)KCa4(Si8O20)(F,OH) · 8H2O
H Dickinsonite-(KMnNa){KNa}{Mn2+◻}{Ca}{Na3}{Mn132+}{Al}(PO4)12(OH)2
H EosphoriteMn2+Al(PO4)(OH)2 · H2O
H EpsomiteMgSO4 · 7H2O
H Hureaulite(Mn,Fe)5(PO4)2(HPO4)2 · 4H2O
H WarditeNaAl3(PO4)2(OH)4 · 2H2O
H BrazilianiteNaAl3(PO4)2(OH)4
H AnnabergiteNi3(AsO4)2 · 8H2O
H BismutoferriteFe23+Bi(SiO4)2(OH)
H AlleghanyiteMn52+(SiO4)2(OH)2
H LudlamiteFe32+(PO4)2 · 4H2O
H Uranpyrochlore (of Hogarth 1977)(Ca,U,Ce)2(Nb,Ti,Ta)2O6(OH,F)
H Birnessite(Na,Ca)0.5(Mn4+,Mn3+)2O4 · 1.5H2O
H CaryopiliteMn32+Si2O5(OH)4
H GroutiteMn3+O(OH)
H CronstedtiteFe22+Fe3+((Si,Fe3+)2O5)(OH)4
H ParagoniteNaAl2(AlSi3O10)(OH)2
H PyrophylliteAl2Si4O10(OH)2
H AzuriteCu3(CO3)2(OH)2
H Grunerite☐{Fe22+}{Fe52+}(Si8O22)(OH)2
H CrandalliteCaAl3(PO4)(PO3OH)(OH)6
H MoriniteNaCa2Al2(PO4)2(OH)F4 · 2H2O
H Pitticite(Fe, AsO4, H2O) (?)
H RoscheriteCa2Mn52+Be4(PO4)6(OH)4 · 6H2O
H BerauniteFe2+Fe53+(PO4)4(OH)5 · 6H2O
H RockbridgeiteFe2+Fe43+(PO4)3(OH)5
H Cerite-(Ce)(Ce,Ca)9(Mg,Fe)(SiO4)3(HSiO4)4(OH)3
H Hydrokenoelsmoreite2W2O6(H2O)
H Arrojadite-(KFe){KNa}{Fe2+◻}{Ca}{Na2◻}{Fe132+}{Al}(PO4)11(HPO4)(OH)2
H ScorzaliteFe2+Al2(PO4)2(OH)2
H BementiteMn7Si6O15(OH)8
H XanthoxeniteCa4Fe23+(PO4)4(OH)2 · 3H2O
H HexahydriteMgSO4 · 6H2O
H Todorokite(Na,Ca,K,Ba,Sr)1-x(Mn,Mg,Al)6O12 · 3-4H2O
H Reddingite(Mn2+,Fe2+)3(PO4)2 · 3H2O
H LinaritePbCu(SO4)(OH)2
H JarositeKFe3+ 3(SO4)2(OH)6
H StewartiteMn2+Fe23+(PO4)2(OH)2 · 8H2O
H GoslariteZnSO4 · 7H2O
H EuclaseBeAl(SiO4)(OH)
H ChrysotileMg3(Si2O5)(OH)4
H ManganiteMn3+O(OH)
H PlaneriteAl6(PO4)2(HPO4)2(OH)8 · 4 H2O
H Stilpnomelane(K,Ca,Na)(Fe2+,Mg,Al)8(Si,Al)12(O,OH)36 · nH2O
H Palermoite(Li,Na)2(Sr,Ca)Al4(PO4)4(OH)4
H JohanniteCu(UO2)2(SO4)2(OH)2 · 8H2O
LiLithium
Li ElbaiteNa(Li1.5Al1.5)Al6(Si6O18)(BO3)3(OH)3(OH)
Li SpodumeneLiAlSi2O6
Li Cookeite(Al2Li)Al2(AlSi3O10)(OH)8
Li LithiophiliteLiMn2+PO4
Li BityiteLiCaAl2(AlBeSi2O10)(OH)2
Li Spodumene (var: Kunzite)LiAlSi2O6
Li MontebrasiteLiAl(PO4)(OH)
Li TriphyliteLiFe2+PO4
Li FerrisickleriteLi1-x(Fex3+Fe2+1-x)PO4
Li Masutomilite(K,Rb)(Li,Mn3+,Al)3(AlSi3O10)(F,OH)2
Li PetaliteLiAl(Si4O10)
Li SickleriteLi1-x(Mnx3+Mn2+1-x)PO4
Li AmblygoniteLiAl(PO4)F
Li EucryptiteLiAlSiO4
Li Palermoite(Li,Na)2(Sr,Ca)Al4(PO4)4(OH)4
BeBeryllium
Be Beryl (var: Heliodor)Be3Al2(Si6O18)
Be BerylBe3Al2(Si6O18)
Be Beryl (var: Morganite)Be3Al2(Si6O18)
Be Beryl (var: Aquamarine)Be3Al2Si6O18
Be BertranditeBe4(Si2O7)(OH)2
Be BaveniteCa4Be2Al2Si9O26(OH)2
Be Beryl (var: Goshenite)Be3Al2(Si6O18)
Be ChrysoberylBeAl2O4
Be BityiteLiCaAl2(AlBeSi2O10)(OH)2
Be HydroxylherderiteCaBe(PO4)(OH,F)
Be MoraesiteBe2(PO4)(OH) · 4H2O
Be BazziteBe3Sc2(Si6O18)
Be PhenakiteBe2SiO4
Be RoscheriteCa2Mn52+Be4(PO4)6(OH)4 · 6H2O
Be EuclaseBeAl(SiO4)(OH)
Be HerderiteCaBePO4(F,OH)
BBoron
B ElbaiteNa(Li1.5Al1.5)Al6(Si6O18)(BO3)3(OH)3(OH)
B TourmalineA(D3)G6(Si6O18)(BO3)3X3Z
B SchorlNa(Fe32+)Al6(Si6O18)(BO3)3(OH)3(OH)
B Tourmaline (var: Verdelite)A(D3)G6(T6O18)(BO3)3X3Z
B Tourmaline (var: Rubellite)A(D3)G6(T6O18)(BO3)3X3Z
B DraviteNa(Mg3)Al6(Si6O18)(BO3)3(OH)3(OH)
B Vesuvianite(Ca,Na,☐)19(Al,Mg,Fe3+)13(☐,B,Al,Fe3+)5(Si2O7)4(SiO4)10(OH,F,O)10
B IndicoliteA(D3)G6(T6O18)(BO3)3X3Z
B Tourmaline (var: Achroite)A(D3)G6(T6O18)(BO3)3X3Z
B Oxy-draviteNa(MgAl2)MgAl5(Si6O18)(BO3)3(OH)3O
B DatoliteCaB(SiO4)(OH)
B Tourmaline (var: Watermelon Tourmaline)A(D3)G6(T6O18)(BO3)3X3Z
B Foitite(□,Na)(Fe22+Al)Al6(Si6O18)(BO3)3(OH)3OH
B Axinite-(Fe)Ca2Fe2+Al2BSi4O15OH
CCarbon
C GraphiteC
C Bismutite(BiO)2CO3
C SideriteFeCO3
C AragoniteCaCO3
C CerussitePbCO3
C CalciteCaCO3
C MalachiteCu2(CO3)(OH)2
C Aurichalcite(Zn,Cu)5(CO3)2(OH)6
C HydrozinciteZn5(CO3)2(OH)6
C MeioniteCa4Al6Si6O24CO3
C DolomiteCaMg(CO3)2
C Bastnäsite-(Ce)Ce(CO3)F
C RhodochrositeMnCO3
C SpurriteCa5(SiO4)2(CO3)
C KutnohoriteCaMn2+(CO3)2
C AzuriteCu3(CO3)2(OH)2
C SmithsoniteZnCO3
C BeyeriteCa(BiO)2(CO3)2
OOxygen
O Muscovite (var: Schernikite)KAl2(AlSi3O10)(OH)2
O SillimaniteAl2(SiO4)O
O Beryl (var: Heliodor)Be3Al2(Si6O18)
O ElbaiteNa(Li1.5Al1.5)Al6(Si6O18)(BO3)3(OH)3(OH)
O BerylBe3Al2(Si6O18)
O Beryl (var: Morganite)Be3Al2(Si6O18)
O Quartz (var: Smoky Quartz)SiO2
O WodginiteMn2+Sn4+Ta2O8
O TourmalineA(D3)G6(Si6O18)(BO3)3X3Z
O Anthophyllite☐{Mg2}{Mg5}(Si8O22)(OH)2
O UraniniteUO2
O MuscoviteKAl2(AlSi3O10)(OH)2
O SchorlNa(Fe32+)Al6(Si6O18)(BO3)3(OH)3(OH)
O Columbite-(Fe)Fe2+Nb2O6
O SpodumeneLiAlSi2O6
O FluorapatiteCa5(PO4)3F
O TopazAl2(SiO4)(F,OH)2
O QuartzSiO2
O Cookeite(Al2Li)Al2(AlSi3O10)(OH)8
O Beryl (var: Aquamarine)Be3Al2Si6O18
O AlbiteNa(AlSi3O8)
O MicroclineK(AlSi3O8)
O CassiteriteSnO2
O BertranditeBe4(Si2O7)(OH)2
O UranophaneCa(UO2)2(SiO3OH)2 · 5H2O
O Pollucite(Cs,Na)2(Al2Si4O12) · 2H2O
O Microcline (var: Amazonite)K(AlSi3O8)
O SpessartineMn32+Al2(SiO4)3
O BecquereliteCa(UO2)6O4(OH)6 · 8H2O
O BaveniteCa4Be2Al2Si9O26(OH)2
O Cordierite(Mg,Fe)2Al3(AlSi5O18)
O VivianiteFe32+(PO4)2 · 8H2O
O WhitmoreiteFe2+Fe23+(PO4)2(OH)2 · 4H2O
O Monazite-(Ce)Ce(PO4)
O Quartz (var: Rock Crystal)SiO2
O Albite (var: Oligoclase)(Na,Ca)[Al(Si,Al)Si2O8]
O Fahlunite(Mg,Fe)Al2Si3O10 · 2H2O
O ScheeliteCa(WO4)
O TorberniteCu(UO2)2(PO4)2 · 12H2O
O Fluorapatite (var: Mn-bearing Fluorapatite)(Ca,Mn2+)5(PO4)3(F,Cl,OH) or Ca5([P,Mn5+]O4)3(F,Cl,OH)
O Zoisite (var: Thulite){Ca2}{Al,Mn33+}(Si2O7)(SiO4)O(OH)
O Tantalite-(Mn)Mn2+Ta2O6
O IshikawaiteU4+Fe2+Nb2O8
O Beryl (var: Goshenite)Be3Al2(Si6O18)
O AlmandineFe32+Al2(SiO4)3
O Albite (var: Cleavelandite)Na(AlSi3O8)
O Meta-autuniteCa(UO2)2(PO4)2 · 6-8H2O
O GrossularCa3Al2(SiO4)3
O Epidote{Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
O ChrysoberylBeAl2O4
O MagnetiteFe2+Fe23+O4
O AnalcimeNa(AlSi2O6) · H2O
O MetatorberniteCu(UO2)2(PO4)2 · 8H2O
O LithiophiliteLiMn2+PO4
O Allanite-(Ce){CaCe}{Al2Fe2+}(Si2O7)(SiO4)O(OH)
O KyaniteAl2(SiO4)O
O Microcline (var: Hyalophane)(K,Ba)[Al(Si,Al)Si2O8]
O Tapiolite-(Fe)(Fe,Mn)(Ta,Nb)2O6
O Opal (var: Opal-AN)SiO2 · nH2O
O ZoisiteCa2Al3[Si2O7][SiO4]O(OH)
O OpalSiO2 · nH2O
O Tantalite-(Fe)Fe2+Ta2O6
O Bismutite(BiO)2CO3
O AutuniteCa(UO2)2(PO4)2 · 11H2O
O Ixiolite(Ta,Nb,Sn,Fe,Mn)4O8
O TripliteMn22+(PO4)F
O Rutile (var: Strüverite)(Ti,Ta,Fe)O2
O Montmorillonite(Na,Ca)0.33(Al,Mg)2(Si4O10)(OH)2 · nH2O
O BityiteLiCaAl2(AlBeSi2O10)(OH)2
O Tapiolite(Fe,Mn)(Ta,Nb)2O6
O Pyrochlore GroupA2Nb2(O,OH)6Z
O Garnet GroupX3Z2(SiO4)3
O AnniteKFe32+(AlSi3O10)(OH)2
O Clinozoisite{Ca2}{Al3}(Si2O7)(SiO4)O(OH)
O Zircon (var: Cyrtolite)Zr[(SiO4),(OH)4]
O KaoliniteAl2(Si2O5)(OH)4
O Limonite(Fe,O,OH,H2O)
O MelanteriteFe2+(H2O)6SO4 · H2O
O PickeringiteMgAl2(SO4)4 · 22H2O
O SideriteFeCO3
O ZirconZr(SiO4)
O FairfielditeCa2Mn2+(PO4)2 · 2H2O
O Samarskite-(Y)YFe3+Nb2O8
O FerrimolybditeFe2(MoO4)3 · nH2O
O LacroixiteNaAl(PO4)F
O AugeliteAl2(PO4)(OH)3
O ScoroditeFe3+AsO4 · 2H2O
O Goethiteα-Fe3+O(OH)
O StauroliteFe22+Al9Si4O23(OH)
O ErythriteCo3(AsO4)2 · 8H2O
O AragoniteCaCO3
O Tourmaline (var: Verdelite)A(D3)G6(T6O18)(BO3)3X3Z
O Tourmaline (var: Rubellite)A(D3)G6(T6O18)(BO3)3X3Z
O Quartz (var: Citrine)SiO2
O Spodumene (var: Kunzite)LiAlSi2O6
O BabingtoniteCa2(Fe,Mn)FeSi5O14(OH)
O MontebrasiteLiAl(PO4)(OH)
O TitaniteCaTi(SiO4)O
O DraviteNa(Mg3)Al6(Si6O18)(BO3)3(OH)3(OH)
O PowelliteCa(MoO4)
O Tantalite(Mn,Fe)(Ta,Nb)2O6
O ApatiteCa5(PO4)3(Cl/F/OH)
O LaueiteMn2+Fe23+(PO4)2(OH)2 · 8H2O
O TriphyliteLiFe2+PO4
O CerussitePbCO3
O Actinolite☐{Ca2}{Mg4.5-2.5Fe0.5-2.5}(Si8O22)(OH)2
O VandendriesscheitePbU7O22 · 12H2O
O FerrisickleriteLi1-x(Fex3+Fe2+1-x)PO4
O StrunziteMn2+Fe23+(PO4)2(OH)2 · 6H2O
O CalciteCaCO3
O HematiteFe2O3
O DiadochiteFe23+(PO4)(SO4)(OH) · 5H2O
O MalachiteCu2(CO3)(OH)2
O MesseliteCa2Fe2+(PO4)2 · 2H2O
O DiopsideCaMgSi2O6
O IlmeniteFe2+TiO3
O PrehniteCa2Al2Si3O10(OH)2
O PyrolusiteMn4+O2
O RhodoniteMn2+SiO3
O Vesuvianite(Ca,Na,☐)19(Al,Mg,Fe3+)13(☐,B,Al,Fe3+)5(Si2O7)4(SiO4)10(OH,F,O)10
O AnglesitePbSO4
O Aurichalcite(Zn,Cu)5(CO3)2(OH)6
O ChrysocollaCu2-xAlx(H2-xSi2O5)(OH)4 · nH2O
O HemimorphiteZn4Si2O7(OH)2 · H2O
O HydrozinciteZn5(CO3)2(OH)6
O MimetitePb5(AsO4)3Cl
O PyromorphitePb5(PO4)3Cl
O Heterosite(Fe3+,Mn3+)PO4
O Quartz (var: Milky Quartz)SiO2
O Quartz (var: Rose Quartz)SiO2
O BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg)([Si/Al]Si2O10)(OH/F)2
O GahniteZnAl2O4
O OrthoclaseK(AlSi3O8)
O Phosphuranylite(H3O)3KCa(UO2)7(PO4)4O4 · 8H2O
O Muscovite (var: Sericite)KAl2(AlSi3O10)(OH)2
O PyrophaniteMn2+TiO3
O Quartz (var: Amethyst)SiO2
O IndicoliteA(D3)G6(T6O18)(BO3)3X3Z
O Tourmaline (var: Achroite)A(D3)G6(T6O18)(BO3)3X3Z
O K Feldspar (var: Adularia)KAlSi3O8
O NatroliteNa2Al2Si3O10 · 2H2O
O Gonnardite(Na,Ca)2(Si,Al)5O10 · 3H2O
O Oxy-draviteNa(MgAl2)MgAl5(Si6O18)(BO3)3(OH)3O
O LiandratiteU(Nb,Ta)2O8
O Quartz (var: Ferruginous Quartz)SiO2
O HydroxylherderiteCaBe(PO4)(OH,F)
O MitridatiteCa2Fe33+(PO4)3O2 · 3H2O
O Grayite(Th,Pb,Ca)(PO4) · H2O
O Thorogummite(Th,U)(SiO4)1-x(OH)4x
O Cummingtonite☐{Mg2}{Mg5}(Si8O22)(OH)2
O FourmarieritePb(UO2)4O3(OH)4 · 4H2O
O ThoriteTh(SiO4)
O MeioniteCa4Al6Si6O24CO3
O Piemontite{Ca2}{Al2Mn3+}(Si2O7)(SiO4)O(OH)
O GypsumCaSO4 · 2H2O
O Albite (var: Peristerite)Na(AlSi3O8)
O DatoliteCaB(SiO4)(OH)
O Tourmaline (var: Watermelon Tourmaline)A(D3)G6(T6O18)(BO3)3X3Z
O Zircon (var: Calyptolite)Zr(SiO4)
O DolomiteCaMg(CO3)2
O Maghemite(Fe3+0.670.33)Fe23+O4
O Ilmenite (var: Manaccanite)Fe2+TiO3
O Allanite Group{A12+REE3+}{M23+M32+}(Si2O7)(SiO4)O(OH)
O RutileTiO2
O PhlogopiteKMg3(AlSi3O10)(OH)2
O Ferri-ghoseite☐[Mn2+Na][Mg4Fe3+]Si8O22(OH)2
O PhosphophylliteZn2Fe(PO4)2 · 4H2O
O Bastnäsite-(Ce)Ce(CO3)F
O HydroxylapatiteCa5(PO4)3(OH)
O LaumontiteCaAl2Si4O12 · 4H2O
O Foitite(□,Na)(Fe22+Al)Al6(Si6O18)(BO3)3(OH)3OH
O GobbinsiteNa5(Si11Al5)O32 · 11H2O
O Tanteuxenite-(Y)Y(Ta,Nb,Ti)2(O,OH)6
O ParsonsitePb2(UO2)(PO4)2
O RhodochrositeMnCO3
O Gedrite☐{Mg2}{Mg3Al2}(Al2Si6O22)(OH)2
O AegirineNaFe3+Si2O6
O Hastingsite{Na}{Ca2}{Fe42+Fe3+}(Al2Si6O22)(OH)2
O DickiteAl2(Si2O5)(OH)4
O SodaliteNa8(Al6Si6O24)Cl2
O NontroniteNa0.3Fe2((Si,Al)4O10)(OH)2 · nH2O
O SpurriteCa5(SiO4)2(CO3)
O GehleniteCa2Al(AlSiO7)
O LarniteCa2SiO4
O Masutomilite(K,Rb)(Li,Mn3+,Al)3(AlSi3O10)(F,OH)2
O Axinite-(Fe)Ca2Fe2+Al2BSi4O15OH
O Gypsum (var: Selenite)CaSO4 · 2H2O
O BismiteBi2O3
O HalloysiteAl2(Si2O5)(OH)4
O Magnesio-hornblende☐{Ca2}{Mg4Al}(AlSi7O22)(OH)2
O MoraesiteBe2(PO4)(OH) · 4H2O
O SpinelMgAl2O4
O TalcMg3Si4O10(OH)2
O Serpentine SubgroupD3[Si2O5](OH)4 D = Mg, Fe, Ni, Mn, Al, Zn
O BazziteBe3Sc2(Si6O18)
O Tremolite☐{Ca2}{Mg5}(Si8O22)(OH)2
O Quartz (var: Blue Quartz)SiO2
O Fluorapophyllite-(K)KCa4(Si8O20)(F,OH) · 8H2O
O AnhydriteCaSO4
O PhenakiteBe2SiO4
O AnataseTiO2
O Dickinsonite-(KMnNa){KNa}{Mn2+◻}{Ca}{Na3}{Mn132+}{Al}(PO4)12(OH)2
O EosphoriteMn2+Al(PO4)(OH)2 · H2O
O EpsomiteMgSO4 · 7H2O
O PetaliteLiAl(Si4O10)
O Hureaulite(Mn,Fe)5(PO4)2(HPO4)2 · 4H2O
O PurpuriteMn3+(PO4)
O WarditeNaAl3(PO4)2(OH)4 · 2H2O
O BrazilianiteNaAl3(PO4)2(OH)4
O AnnabergiteNi3(AsO4)2 · 8H2O
O BismutoferriteFe23+Bi(SiO4)2(OH)
O AlleghanyiteMn52+(SiO4)2(OH)2
O JacobsiteMn2+Fe23+O4
O KutnohoriteCaMn2+(CO3)2
O LudlamiteFe32+(PO4)2 · 4H2O
O TephroiteMn22+SiO4
O Uranpyrochlore (of Hogarth 1977)(Ca,U,Ce)2(Nb,Ti,Ta)2O6(OH,F)
O Quartz (var: Chalcedony)SiO2
O Birnessite(Na,Ca)0.5(Mn4+,Mn3+)2O4 · 1.5H2O
O BaryteBaSO4
O BustamiteCaMn2+(Si2O6)
O CaryopiliteMn32+Si2O5(OH)4
O PyroxmangiteMnSiO3
O Ixiolite (var: Wolframoixiolite)(Nb,W,Ta,Fe,Mn,Nb)2O4
O NephelineNa3K(Al4Si4O16)
O GroutiteMn3+O(OH)
O SickleriteLi1-x(Mnx3+Mn2+1-x)PO4
O CronstedtiteFe22+Fe3+((Si,Fe3+)2O5)(OH)4
O ParagoniteNaAl2(AlSi3O10)(OH)2
O PyrophylliteAl2Si4O10(OH)2
O MiniumPb3O4
O MassicotPbO
O LithargePbO
O PlattneritePbO2
O BismutotantaliteBi(Ta,Nb)O4
O NatrophiliteNaMn2+PO4
O EnstatiteMgSiO3
O Augite(CaxMgyFez)(Mgy1Fez1)Si2O6
O WollastoniteCaSiO3
O Anorthite (var: Labradorite)(Ca,Na)[Al(Al,Si)Si2O8]
O AnorthiteCa(Al2Si2O8)
O Augite (var: Fassaite)(Ca,Na)(Mg,Fe2+,Al,Fe3+,Ti)[(Si,Al)2O6]
O AzuriteCu3(CO3)2(OH)2
O Grunerite☐{Fe22+}{Fe52+}(Si8O22)(OH)2
O Augite (var: Titanian Augite)(Ca,Na)(Mg,Ti, Fe,Al,)(Si,Al)2O6
O Kaersutite{Na}{Ca2}{Mg3AlTi}(Al2Si6O22)O2
O ArsenoliteAs2O3
O CrandalliteCaAl3(PO4)(PO3OH)(OH)6
O MoriniteNaCa2Al2(PO4)2(OH)F4 · 2H2O
O Pitticite(Fe, AsO4, H2O) (?)
O GraftoniteFe2+Fe22+(PO4)2
O RoscheriteCa2Mn52+Be4(PO4)6(OH)4 · 6H2O
O BerauniteFe2+Fe53+(PO4)4(OH)5 · 6H2O
O RockbridgeiteFe2+Fe43+(PO4)3(OH)5
O Cerite-(Ce)(Ce,Ca)9(Mg,Fe)(SiO4)3(HSiO4)4(OH)3
O Hydrokenoelsmoreite2W2O6(H2O)
O Arrojadite-(KFe){KNa}{Fe2+◻}{Ca}{Na2◻}{Fe132+}{Al}(PO4)11(HPO4)(OH)2
O Xenotime-(Y)Y(PO4)
O SmithsoniteZnCO3
O Yttrocolumbite-(Y)Y(U4+,Fe2+)Nb2O8
O ScorzaliteFe2+Al2(PO4)2(OH)2
O BementiteMn7Si6O15(OH)8
O BeyeriteCa(BiO)2(CO3)2
O PetscheckiteUFe(Nb,Ta)2O8
O WulfenitePb(MoO4)
O XanthoxeniteCa4Fe23+(PO4)4(OH)2 · 3H2O
O HexahydriteMgSO4 · 6H2O
O GalaxiteMn2+Al2O4
O Todorokite(Na,Ca,K,Ba,Sr)1-x(Mn,Mg,Al)6O12 · 3-4H2O
O ClaudetiteAs2O3
O Reddingite(Mn2+,Fe2+)3(PO4)2 · 3H2O
O LinaritePbCu(SO4)(OH)2
O JarositeKFe3+ 3(SO4)2(OH)6
O StewartiteMn2+Fe23+(PO4)2(OH)2 · 8H2O
O JohannseniteCaMn2+Si2O6
O SilléniteBi12SiO20
O GoslariteZnSO4 · 7H2O
O EuclaseBeAl(SiO4)(OH)
O AmblygoniteLiAl(PO4)F
O ChrysotileMg3(Si2O5)(OH)4
O EucryptiteLiAlSiO4
O ManganiteMn3+O(OH)
O PlaneriteAl6(PO4)2(HPO4)2(OH)8 · 4 H2O
O Stilpnomelane(K,Ca,Na)(Fe2+,Mg,Al)8(Si,Al)12(O,OH)36 · nH2O
O HerderiteCaBePO4(F,OH)
O Palermoite(Li,Na)2(Sr,Ca)Al4(PO4)4(OH)4
O JohanniteCu(UO2)2(SO4)2(OH)2 · 8H2O
O Euxenite-(Y)(Y,Ca,Ce,U,Th)(Nb,Ta,Ti)2O6
FFluorine
F Fluorite (var: Chlorophane)CaF2
F FluorapatiteCa5(PO4)3F
F TopazAl2(SiO4)(F,OH)2
F Fluorapatite (var: Mn-bearing Fluorapatite)(Ca,Mn2+)5(PO4)3(F,Cl,OH) or Ca5([P,Mn5+]O4)3(F,Cl,OH)
F FluoriteCaF2
F TripliteMn22+(PO4)F
F LacroixiteNaAl(PO4)F
F ApatiteCa5(PO4)3(Cl/F/OH)
F Vesuvianite(Ca,Na,☐)19(Al,Mg,Fe3+)13(☐,B,Al,Fe3+)5(Si2O7)4(SiO4)10(OH,F,O)10
F BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg)([Si/Al]Si2O10)(OH/F)2
F Bastnäsite-(Ce)Ce(CO3)F
F Masutomilite(K,Rb)(Li,Mn3+,Al)3(AlSi3O10)(F,OH)2
F Fluorapophyllite-(K)KCa4(Si8O20)(F,OH) · 8H2O
F Uranpyrochlore (of Hogarth 1977)(Ca,U,Ce)2(Nb,Ti,Ta)2O6(OH,F)
F MoriniteNaCa2Al2(PO4)2(OH)F4 · 2H2O
F AmblygoniteLiAl(PO4)F
F HerderiteCaBePO4(F,OH)
NaSodium
Na ElbaiteNa(Li1.5Al1.5)Al6(Si6O18)(BO3)3(OH)3(OH)
Na SchorlNa(Fe32+)Al6(Si6O18)(BO3)3(OH)3(OH)
Na AlbiteNa(AlSi3O8)
Na Pollucite(Cs,Na)2(Al2Si4O12) · 2H2O
Na Albite (var: Oligoclase)(Na,Ca)[Al(Si,Al)Si2O8]
Na Albite (var: Cleavelandite)Na(AlSi3O8)
Na AnalcimeNa(AlSi2O6) · H2O
Na Montmorillonite(Na,Ca)0.33(Al,Mg)2(Si4O10)(OH)2 · nH2O
Na LacroixiteNaAl(PO4)F
Na DraviteNa(Mg3)Al6(Si6O18)(BO3)3(OH)3(OH)
Na Vesuvianite(Ca,Na,☐)19(Al,Mg,Fe3+)13(☐,B,Al,Fe3+)5(Si2O7)4(SiO4)10(OH,F,O)10
Na NatroliteNa2Al2Si3O10 · 2H2O
Na Gonnardite(Na,Ca)2(Si,Al)5O10 · 3H2O
Na Oxy-draviteNa(MgAl2)MgAl5(Si6O18)(BO3)3(OH)3O
Na MeioniteCa4Al6Si6O24CO3
Na Albite (var: Peristerite)Na(AlSi3O8)
Na Ferri-ghoseite☐[Mn2+Na][Mg4Fe3+]Si8O22(OH)2
Na GobbinsiteNa5(Si11Al5)O32 · 11H2O
Na AegirineNaFe3+Si2O6
Na Hastingsite{Na}{Ca2}{Fe42+Fe3+}(Al2Si6O22)(OH)2
Na SodaliteNa8(Al6Si6O24)Cl2
Na NontroniteNa0.3Fe2((Si,Al)4O10)(OH)2 · nH2O
Na BazziteBe3Sc2(Si6O18)
Na Dickinsonite-(KMnNa){KNa}{Mn2+◻}{Ca}{Na3}{Mn132+}{Al}(PO4)12(OH)2
Na WarditeNaAl3(PO4)2(OH)4 · 2H2O
Na BrazilianiteNaAl3(PO4)2(OH)4
Na Birnessite(Na,Ca)0.5(Mn4+,Mn3+)2O4 · 1.5H2O
Na NephelineNa3K(Al4Si4O16)
Na ParagoniteNaAl2(AlSi3O10)(OH)2
Na NatrophiliteNaMn2+PO4
Na Anorthite (var: Labradorite)(Ca,Na)[Al(Al,Si)Si2O8]
Na Augite (var: Fassaite)(Ca,Na)(Mg,Fe2+,Al,Fe3+,Ti)[(Si,Al)2O6]
Na Augite (var: Titanian Augite)(Ca,Na)(Mg,Ti, Fe,Al,)(Si,Al)2O6
Na Kaersutite{Na}{Ca2}{Mg3AlTi}(Al2Si6O22)O2
Na MoriniteNaCa2Al2(PO4)2(OH)F4 · 2H2O
Na Arrojadite-(KFe){KNa}{Fe2+◻}{Ca}{Na2◻}{Fe132+}{Al}(PO4)11(HPO4)(OH)2
Na Todorokite(Na,Ca,K,Ba,Sr)1-x(Mn,Mg,Al)6O12 · 3-4H2O
Na Stilpnomelane(K,Ca,Na)(Fe2+,Mg,Al)8(Si,Al)12(O,OH)36 · nH2O
Na Palermoite(Li,Na)2(Sr,Ca)Al4(PO4)4(OH)4
MgMagnesium
Mg Anthophyllite☐{Mg2}{Mg5}(Si8O22)(OH)2
Mg Cordierite(Mg,Fe)2Al3(AlSi5O18)
Mg Fahlunite(Mg,Fe)Al2Si3O10 · 2H2O
Mg Montmorillonite(Na,Ca)0.33(Al,Mg)2(Si4O10)(OH)2 · nH2O
Mg PickeringiteMgAl2(SO4)4 · 22H2O
Mg DraviteNa(Mg3)Al6(Si6O18)(BO3)3(OH)3(OH)
Mg Actinolite☐{Ca2}{Mg4.5-2.5Fe0.5-2.5}(Si8O22)(OH)2
Mg DiopsideCaMgSi2O6
Mg Vesuvianite(Ca,Na,☐)19(Al,Mg,Fe3+)13(☐,B,Al,Fe3+)5(Si2O7)4(SiO4)10(OH,F,O)10
Mg BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg)([Si/Al]Si2O10)(OH/F)2
Mg Oxy-draviteNa(MgAl2)MgAl5(Si6O18)(BO3)3(OH)3O
Mg Cummingtonite☐{Mg2}{Mg5}(Si8O22)(OH)2
Mg DolomiteCaMg(CO3)2
Mg PhlogopiteKMg3(AlSi3O10)(OH)2
Mg Ferri-ghoseite☐[Mn2+Na][Mg4Fe3+]Si8O22(OH)2
Mg Gedrite☐{Mg2}{Mg3Al2}(Al2Si6O22)(OH)2
Mg Magnesio-hornblende☐{Ca2}{Mg4Al}(AlSi7O22)(OH)2
Mg SpinelMgAl2O4
Mg TalcMg3Si4O10(OH)2
Mg Serpentine SubgroupD3[Si2O5](OH)4 D = Mg, Fe, Ni, Mn, Al, Zn
Mg BazziteBe3Sc2(Si6O18)
Mg Tremolite☐{Ca2}{Mg5}(Si8O22)(OH)2
Mg EpsomiteMgSO4 · 7H2O
Mg EnstatiteMgSiO3
Mg Augite(CaxMgyFez)(Mgy1Fez1)Si2O6
Mg Augite (var: Fassaite)(Ca,Na)(Mg,Fe2+,Al,Fe3+,Ti)[(Si,Al)2O6]
Mg Augite (var: Titanian Augite)(Ca,Na)(Mg,Ti, Fe,Al,)(Si,Al)2O6
Mg Kaersutite{Na}{Ca2}{Mg3AlTi}(Al2Si6O22)O2
Mg Cerite-(Ce)(Ce,Ca)9(Mg,Fe)(SiO4)3(HSiO4)4(OH)3
Mg HexahydriteMgSO4 · 6H2O
Mg Todorokite(Na,Ca,K,Ba,Sr)1-x(Mn,Mg,Al)6O12 · 3-4H2O
Mg ChrysotileMg3(Si2O5)(OH)4
Mg Stilpnomelane(K,Ca,Na)(Fe2+,Mg,Al)8(Si,Al)12(O,OH)36 · nH2O
AlAluminium
Al Muscovite (var: Schernikite)KAl2(AlSi3O10)(OH)2
Al SillimaniteAl2(SiO4)O
Al Beryl (var: Heliodor)Be3Al2(Si6O18)
Al ElbaiteNa(Li1.5Al1.5)Al6(Si6O18)(BO3)3(OH)3(OH)
Al BerylBe3Al2(Si6O18)
Al Beryl (var: Morganite)Be3Al2(Si6O18)
Al MuscoviteKAl2(AlSi3O10)(OH)2
Al SchorlNa(Fe32+)Al6(Si6O18)(BO3)3(OH)3(OH)
Al SpodumeneLiAlSi2O6
Al TopazAl2(SiO4)(F,OH)2
Al Cookeite(Al2Li)Al2(AlSi3O10)(OH)8
Al Beryl (var: Aquamarine)Be3Al2Si6O18
Al AlbiteNa(AlSi3O8)
Al MicroclineK(AlSi3O8)
Al Pollucite(Cs,Na)2(Al2Si4O12) · 2H2O
Al Microcline (var: Amazonite)K(AlSi3O8)
Al SpessartineMn32+Al2(SiO4)3
Al BaveniteCa4Be2Al2Si9O26(OH)2
Al Cordierite(Mg,Fe)2Al3(AlSi5O18)
Al Albite (var: Oligoclase)(Na,Ca)[Al(Si,Al)Si2O8]
Al Fahlunite(Mg,Fe)Al2Si3O10 · 2H2O
Al Zoisite (var: Thulite){Ca2}{Al,Mn33+}(Si2O7)(SiO4)O(OH)
Al Beryl (var: Goshenite)Be3Al2(Si6O18)
Al AlmandineFe32+Al2(SiO4)3
Al Albite (var: Cleavelandite)Na(AlSi3O8)
Al GrossularCa3Al2(SiO4)3
Al Epidote{Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
Al ChrysoberylBeAl2O4
Al AnalcimeNa(AlSi2O6) · H2O
Al Allanite-(Ce){CaCe}{Al2Fe2+}(Si2O7)(SiO4)O(OH)
Al KyaniteAl2(SiO4)O
Al Microcline (var: Hyalophane)(K,Ba)[Al(Si,Al)Si2O8]
Al ZoisiteCa2Al3[Si2O7][SiO4]O(OH)
Al Montmorillonite(Na,Ca)0.33(Al,Mg)2(Si4O10)(OH)2 · nH2O
Al BityiteLiCaAl2(AlBeSi2O10)(OH)2
Al AnniteKFe32+(AlSi3O10)(OH)2
Al Clinozoisite{Ca2}{Al3}(Si2O7)(SiO4)O(OH)
Al KaoliniteAl2(Si2O5)(OH)4
Al PickeringiteMgAl2(SO4)4 · 22H2O
Al LacroixiteNaAl(PO4)F
Al AugeliteAl2(PO4)(OH)3
Al StauroliteFe22+Al9Si4O23(OH)
Al Spodumene (var: Kunzite)LiAlSi2O6
Al MontebrasiteLiAl(PO4)(OH)
Al DraviteNa(Mg3)Al6(Si6O18)(BO3)3(OH)3(OH)
Al PrehniteCa2Al2Si3O10(OH)2
Al Vesuvianite(Ca,Na,☐)19(Al,Mg,Fe3+)13(☐,B,Al,Fe3+)5(Si2O7)4(SiO4)10(OH,F,O)10
Al ChrysocollaCu2-xAlx(H2-xSi2O5)(OH)4 · nH2O
Al BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg)([Si/Al]Si2O10)(OH/F)2
Al GahniteZnAl