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Danbury, Fairfield Co., Connecticut, USAi
Regional Level Types
DanburyMunicipality
Fairfield Co.County
ConnecticutState
USACountry

This page kindly sponsored by Mark Kucera
Key
Latitude & Longitude (WGS84):
41° 23' 47'' North , 73° 27' 15'' West
Latitude & Longitude (decimal):
Locality type:
Köppen climate type:


A city first incorporated as a town in 1702. Most famous mineralogically for the danburite type locality (see http://www.mindat.org/loc-243666.html).

Its bedrock geology is very complex because the city lies over a folded section of Cameron's Line, a major thrust fault separating Ordovician Ratlum Mountain schist of oceanic origin (and intruded Brookfield diorite gneiss) under Shelter Rock from metamorphosed continental shelf deposits (marble, quartzite, gneiss) overlying Lauretian basement under most of the city. The Cambrian Stockbridge marble underlies low lying areas NE and SE of Shelter Rock, and under Mill Plain to the west. The Still River and Limekiln Brook generally follow these lowlands. The highlands occupying most of the north and southwest parts of the city are underlain by very resistant rocks of the Cambrian Dalton formation and the Proterozoic Laurentian gneisses, which in the southwest have been cut up by probable Mesozoic normal faulting.

Regions containing this locality

North America PlateTectonic Plate

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Standard Detailed Strunz Dana Chemical Elements

Commodity List

This is a list of exploitable or exploited mineral commodities recorded from this region.


Mineral List

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

49 valid minerals. 1 (TL) - type locality of valid minerals. 3 erroneous literature entries.

Rock Types Recorded

Note: this is a very new system on mindat.org and data is currently VERY limited. Please bear with us while we work towards adding this information!

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

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Alphabetical List Tree Diagram

Detailed Mineral List:

Actinolite
Formula: ☐{Ca2}{Mg4.5-2.5Fe0.5-2.5}(Si8O22)(OH)2
Habit: elongated prisms
Colour: dark green
Description: Massive to subhedral elongated crystals in calc-silicate rocks
Reference: Januzzi, Ronald E. (1976): Mineral Localities of Connecticut and Southeastern New York State. The Mineralogical Press, Danbury, Connecticut: 192-201.; Former Ronald Januzzi collection.
Albite
Formula: Na(AlSi3O8)
Reference: Manchester, James G. (1931): The Minerals of New York City and Its Environs. New York Mineralogical Club Bulletin: 3(1): 70.
Albite var: Oligoclase
Formula: (Na,Ca)[Al(Si,Al)Si2O8]
Habit: granular, massive to subhedral
Colour: white to pale bluish-white
Fluorescence: pale yellow-white
Description: In dolomite and intimately associated with a K-spar and rarely danburite. Specimens preserved at Yale Peabody Museum range from coarse-granular to elongated subhedral (to a few cms), are white, opaque to translucent, with abundant polysynthetic twinning and adamantine luster on the abundant cleavage. Rather dull fluorescence under LW UV, pale yellow-white.
Reference: Shepard, Charles U. (1839): Notice of Danburite, a new mineral species. American Journal of Science: series 1, 35 (1): 137-139; Smith, Lawrence J. and George J. Brush. (1853a): Reexamination of American Minerals, Part II. American Journal of Science: series 2, 16 (46): 44.
'Albite-Anorthite Series'
Reference: Januzzi, Ronald E. (1994): Mineral Data Book, Western Connecticut and Environs. The Mineralogical Press, Danbury, Connecticut.
'Allanite Group'
Formula: {A12+REE3+}{M3+2M32+}(Si2O7)(SiO4)O(OH)
Description: "reported in and around the immediate Danbury area. Occurring in granite containing a good deal of pink feldspar, some crystals measured one inch in length and one quarter of an inch in diameter. The specimens collected and seen have not been too radioactive. Radial cracking and the red staining of the feldspar around the allanite is typical." Januzzi (1959).
Reference: Januzzi, Ronald E. (1959): The Minerals of Western Connecticut and Southeastern New York. The Mineralogical Press, Danbury, Connecticut.
Almandine
Formula: Fe2+3Al2(SiO4)3
'Amphibole Supergroup'
Formula: AX2Z5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
'Amphibole Supergroup var: Uralite' ?
Formula: AX2Z5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
Description: Included in a list of minerals with no details.
Reference: Januzzi, Ronald E. (1976): Mineral Localities of Connecticut and Southeastern New York State. The Mineralogical Press, Danbury, Connecticut: 192-201.
Aragonite
Formula: CaCO3
Augite
Formula: (CaxMgyFez)(Mgy1Fez1)Si2O6
Baryte
Formula: BaSO4
Description: Included in lists of minerals found, but with no details.
Reference: Januzzi, Ronald E. (1976): Mineral Localities of Connecticut and Southeastern New York State. The Mineralogical Press, Danbury, Connecticut.; Ryerson, Kathleen H. (1972): Rock Hound's Guide to Connecticut. Pequot Press.; Weber, Marcelle H. and Earle C. Sullivan. (1995): Connecticut Mineral Locality Index. Rocks & Minerals (Connecticut Issue): 70(6): 396.
'Biotite'
Formula: K(Fe2+/Mg)2(Al/Fe3+/Mg)([Si/Al]Si2O10)(OH/F)2
Reference: Manchester, James G. (1931): The Minerals of New York City and Its Environs. New York Mineralogical Club Bulletin: 3(1): 70.
'Brewsterite' ?
Description: "as microscopic monoclinic crystals, and as white fibers in a cavity in pyroxene...verified by x-ray diffraction analysis" Pawloski (1965). But questioned by Tschernich (1992).
Reference: Pawloski, John A. (1965): Two Intersting Zeolites from Connecticut. Rocks and Minerals: 40(7): 494.; Tschernich, Rudy W. (1992): Zeolites of the World. Geoscience Press, Phoenix: 85.
Calcite
Formula: CaCO3
Celestine
Formula: SrSO4
Colour: pale blue
Description: Included in lists of minerals without details, but Januzzi (1994) includes a photograph.
Reference: Januzzi, Ronald E. (1976): Mineral Localities of Connecticut and Southeastern New York State. The Mineralogical Press, Danbury, Connecticut.; Ryerson, Kathleen H. (1972): Rock Hound's Guide to Connecticut. Pequot Press.; Januzzi, Ronald E. (1994), Mineral Data Book - Western Connecticut and Environs. The Mineralogical Press, Danbury, Connecticut.
'Chabazite' ?
Description: Included in a list of minerals with no details provided.
Reference: Januzzi, Ronald E. (1976): Mineral Localities of Connecticut and Southeastern New York State. The Mineralogical Press, Danbury, Connecticut: 192-201.
Chalcopyrite
Formula: CuFeS2
'Chlorite Group'
Chondrodite
Formula: (Mg,Fe2+)5(SiO4)2(F,OH)2
Habit: anhedral to subhedral
Colour: reddish-orange
Description: "It occurs as anhedral to subhedral crystals and crystal aggregates, whose individual grains range from microscopic to macroscopic in size. I am most impressed, however, by the color of the chondrodite which is often a beautiful reddish-orange on freshly exposed surfaces of the limestone." Januzzi (1976).
Reference: Januzzi, Ronald E. (1976): Mineral Localities of Connecticut and Southeastern New York State. The Mineralogical Press, Danbury, Connecticut: 192-201; Weber, Marcelle H. and Earle C. Sullivan. (1995): Connecticut Mineral Locality Index. Rocks & Minerals (Connecticut Issue): 70 (6): 397.
Clinochlore
Formula: Mg5Al(AlSi3O10)(OH)8
Description: Included in a lists of minerals without details, but plausible for the formation.
Reference: Januzzi, Ronald E. (1976): Mineral Localities of Connecticut and Southeastern New York State. The Mineralogical Press, Danbury, Connecticut.
'Columbite-(Fe)-Columbite-(Mn) Series'
Habit: blocky, subhedral
Colour: black
Description: Januzzi (1994) includes a photo of small crystals in massive quartz, apparently from one of the small cross-cutting pegmatites.
Reference: Januzzi, Ronald E. (1976): Mineral Localities of Connecticut and Southeastern New York State. The Mineralogical Press, Danbury, Connecticut: 224-6.; Januzzi, Ronald E. (1994), Mineral Data Book - Western Connecticut and Environs. The Mineralogical Press, Danbury, Connecticut.
Danburite (TL)
Formula: CaB2Si2O8
Reference: Shepard, C.U. (1939) Amer J of Sci; Shepard, C.U. (1840): Der Danburit, eine neue Mineralspecies, Annalen der Physik und Chemie, Vol. 126 (2/050), p. 182
Datolite
Formula: CaB(SiO4)(OH)
Habit: fine granular crystal aggregates
Colour: whitish
Description: "as fine granular crystal aggregates having whitish color in mass, many of them being transparent under the microscope. Associated minerals include: calcite, pyroxene, amphibole, and sphene." Januzzi (1976). Januzzi (1994) includes a photograph.
Reference: Januzzi, Ronald E. (1976): Mineral Localities of Connecticut and Southeastern New York State. The Mineralogical Press, Danbury, Connecticut: 192-201; Januzzi, Ronald E. (1994), Mineral Data Book - Western Connecticut and Environs. The Mineralogical Press, Danbury, Connecticut.
Diopside
Formula: CaMgSi2O6
Dolomite
Formula: CaMg(CO3)2
Dumortierite ?
Formula: (Al,Fe3+)7(SiO4)3(BO3)O3
Habit: acicular
Colour: bright blue
Description: A few concentrations of tiny acicular crystals in one specimen of coarse-grained albite/quartz/biotite gneiss matrix.
Reference: Former Ronald Januzzi collection
Epidote ?
Formula: {Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
Description: Included in a list of minerals with no details.
Reference: Januzzi, Ronald E. (1976): Mineral Localities of Connecticut and Southeastern New York State. The Mineralogical Press, Danbury, Connecticut: 192-201.
Epistilbite ?
Formula: CaAl2Si6O16 · 5H2O
Description: "as microscopic monoclinic crystals, and as white fibers in a cavity in pyroxene...verified by x-ray diffraction analysis" Pawloski (1965). But questioned by Tschernich (1992).
Reference: Pawloski, John A. (1965): Two Intersting Zeolites from Connecticut. Rocks and Minerals: 40(7): 494.; Tschernich, Rudy W. (1992): Zeolites of the World. Geoscience Press, Phoenix: 154.
'Fayalite-Forsterite Series'
Reference: Huff, Russell. (2013), Rediscovery of Danburite at Danbury, Connecticut. Mineral News: 29(8): 6.
'Feldspar Group'
Reference: Huff, Russell. (2013), Rediscovery of Danburite at Danbury, Connecticut. Mineral News: 29(8): 6.
Fluorapatite
Formula: Ca5(PO4)3F
Fluorite ?
Formula: CaF2
Description: Included in a list of minerals with no details.
Reference: Januzzi, Ronald E. (1976): Mineral Localities of Connecticut and Southeastern New York State. The Mineralogical Press, Danbury, Connecticut: 192-201.
Forsterite
Formula: Mg2SiO4
Reference: Manchester, James G. (1931): The Minerals of New York City and Its Environs. New York Mineralogical Club Bulletin: 3(1): 70.
'Garnet Group'
Formula: X3Z2(SiO4)3
Reference: Manchester, James G. (1931): The Minerals of New York City and Its Environs. New York Mineralogical Club Bulletin: 3(1): 70.
Goethite ?
Formula: α-Fe3+O(OH)
Description: Included in a list of minerals with no details.
Reference: Januzzi, Ronald E. (1976): Mineral Localities of Connecticut and Southeastern New York State. The Mineralogical Press, Danbury, Connecticut: 192-201.
Graphite
Formula: C
Description: "found about one mile northwest of Danbury on the road to New Fairfield", Schairer (1931).
Reference: Manchester, James G. (1931): The Minerals of New York City and Its Environs. New York Mineralogical Club Bulletin: 3(1): 70.; Schairer, John F. (1931): Minerals of Connecticut. State Geological and Natural History Survey of Connecticut Bulletin 51.; Januzzi, Ronald E. (1959): The Minerals of Western Connecticut and Southeastern New York. The Mineralogical Press, Danbury, Connecticut.
Gypsum
Formula: CaSO4 · 2H2O
Habit: micro plumose aggregates
Colour: colorless but typically stained yellow
Description: Micro secondary crystals from the reaction of pyrite, calcite and water and "found as seams in limestone associated with calcite at the limestone quarry, Beaver Brook District, Danbury" Januzzi (1959). Schooner (1961) reports seeing a good example.
Reference: Januzzi, Ronald E. (1959): The Minerals of Western Connecticut and Southeastern New York. The Mineralogical Press, Danbury, Connecticut.; Januzzi, Ronald E. (1976): Mineral Localities of Connecticut and Southeastern New York State. The Mineralogical Press, Danbury, Connecticut.; Ryerson, Kathleen H. (1972): Rock Hound's Guide to Connecticut. Pequot Press.
Gypsum var: Selenite
Formula: CaSO4 · 2H2O
Habit: micro plumose aggregates
Colour: colorless but typically stained yellow
Description: Micro secondary crystals from the reaction of pyrite, calcite and water and "found as seams in limestone associated with calcite at the limestone quarry, Beaver Brook District, Danbury" Januzzi (1959). Schooner (1961) reports seeing a good example.
Reference: Januzzi, Ronald E. (1959): The Minerals of Western Connecticut and Southeastern New York. The Mineralogical Press, Danbury, Connecticut.; Januzzi, Ronald E. (1976): Mineral Localities of Connecticut and Southeastern New York State. The Mineralogical Press, Danbury, Connecticut.; Ryerson, Kathleen H. (1972): Rock Hound's Guide to Connecticut. Pequot Press.
Hematite
Formula: Fe2O3
'Heulandite subgroup' ?
Description: Included in a list of minerals with no details.
Reference: Januzzi, Ronald E. (1976): Mineral Localities of Connecticut and Southeastern New York State. The Mineralogical Press, Danbury, Connecticut: 192-201.
'Hornblende'
Reference: Manchester, James G. (1931): The Minerals of New York City and Its Environs. New York Mineralogical Club Bulletin: 3(1): 70.
Ilmenite
Formula: Fe2+TiO3
Reference: Januzzi, Ronald E. (1959): The Minerals of Western Connecticut and Southeastern New York. The Mineralogical Press, Danbury, Connecticut.
Laumontite ?
Formula: CaAl2Si4O12 · 4H2O
Description: Included in a list of minerals with no details.
Reference: Januzzi, Ronald E. (1976): Mineral Localities of Connecticut and Southeastern New York State. The Mineralogical Press, Danbury, Connecticut: 192-201.
'Limonite'
Formula: (Fe,O,OH,H2O)
Magnetite
Formula: Fe2+Fe3+2O4
Microcline
Formula: K(AlSi3O8)
Molybdenite
Formula: MoS2
Habit: massive aggregates to a few cm
Colour: metallic silvery gray
Description: Small masses in albite or fine-grained secondary calcite with pyrite, found by Charles and Marcelle Weber.
Reference: Januzzi, Ronald E. (1976): Mineral Localities of Connecticut and Southeastern New York State. The Mineralogical Press, Danbury, Connecticut: 192-201.; Former Ronald Januzzi collection.
'Moonstone'
Reference: Manchester, James G. (1931): The Minerals of New York City and Its Environs. New York Mineralogical Club Bulletin: 3(1): 70.
Muscovite
Formula: KAl2(AlSi3O10)(OH)2
Opal
Formula: SiO2 · nH2O
Opal var: Opal-AN
Formula: SiO2 · nH2O
Orthoclase
Formula: K(AlSi3O8)
Reference: Januzzi, Ronald E. (1959): The Minerals of Western Connecticut and Southeastern New York. The Mineralogical Press, Danbury, Connecticut.
Palygorskite
Formula: (Mg,Al)5(Si,Al)8O20(OH)2 · 8H2O
Description: TEM-EDS analysis showed a sample to be sepiolite.
Reference: Januzzi, Ronald E. (1976): Mineral Localities of Connecticut and Southeastern New York State. The Mineralogical Press, Danbury, Connecticut.; Januzzi, Ronald E. (1994), Mineral Data Book - Western Connecticut and Environs. The Mineralogical Press, Danbury, Connecticut.
Phlogopite
Formula: KMg3(AlSi3O10)(OH)2
Prehnite ?
Formula: Ca2Al2Si3O10(OH)2
Description: Included in a list of minerals with no details.
Reference: Januzzi, Ronald E. (1976): Mineral Localities of Connecticut and Southeastern New York State. The Mineralogical Press, Danbury, Connecticut: 192-201.
Pyrite
Formula: FeS2
Reference: Manchester, James G. (1931): The Minerals of New York City and Its Environs. New York Mineralogical Club Bulletin: 3(1): 70.
'Pyroxene Group'
Reference: Manchester, James G. (1931): The Minerals of New York City and Its Environs. New York Mineralogical Club Bulletin: 3(1): 70.
Pyrrhotite
Formula: Fe7S8
Quartz
Formula: SiO2
Localities: Reported from at least 6 localities in this region.
Reference: Manchester, James G. (1931): The Minerals of New York City and Its Environs. New York Mineralogical Club Bulletin: 3(1): 70.
Rutherfordine
Formula: (UO2)CO3
Description: Speculation.
Reference: Januzzi, Ronald E. (1976): Mineral Localities of Connecticut and Southeastern New York State. The Mineralogical Press, Danbury, Connecticut: 192-201.
Rutile
Formula: TiO2
Reference: Manchester, James G. (1931): The Minerals of New York City and Its Environs. New York Mineralogical Club Bulletin: 3(1): 70.
'Scapolite'
Scheelite
Formula: Ca(WO4)
Description: "commonly reported" Ryerson (1972).
Reference: Januzzi, Ronald E. (1976): Mineral Localities of Connecticut and Southeastern New York State. The Mineralogical Press, Danbury, Connecticut.; Ryerson, Kathleen H. (1972): Rock Hound's Guide to Connecticut. Pequot Press.
Schorl
Formula: Na(Fe2+3)Al6(Si6O18)(BO3)3(OH)3(OH)
Reference: Januzzi, Ronald E. (1994): Mineral Data Book, Western Connecticut and Environs. The Mineralogical Press, Danbury, Connecticut.
Sepiolite
Formula: Mg4(Si6O15)(OH)2 · 6H2O
Habit: fibrous mats
Colour: white to pale gray-brown
Description: Found as a thin layer sandwiched between opposing calcite crystals. Analyzed in 2017 via TEM-EDS. Januzzi (1994) incorrectly called it palygorskite and includes a photo.
Reference: Januzzi, Ronald E. (1976): Mineral Localities of Connecticut and Southeastern New York State. The Mineralogical Press, Danbury, Connecticut: 185, 224-6.; Januzzi, Ronald E. (1994), Mineral Data Book - Western Connecticut and Environs. The Mineralogical Press, Danbury, Connecticut.
'Serpentine Subgroup' ?
Formula: D3[Si2O5](OH)4 D = Mg, Fe, Ni, Mn, Al, Zn
Description: Included in a list of minerals with no details.
Reference: Januzzi, Ronald E. (1976): Mineral Localities of Connecticut and Southeastern New York State. The Mineralogical Press, Danbury, Connecticut: 192-201.
Sphalerite
Formula: ZnS
Habit: anhedral
Colour: gray-brown
Description: mass of translucent anhedral grains 11 mm across in marble with phlogopite and chondrodite
Reference: Former Ronald Januzzi collection
Spinel
Formula: MgAl2O4
Habit: subhedral octahedral to euhedral
Colour: greenish-black, blue-gray
Description: "It occurs here as greenish-black subhedral to euhedral crystals in limestone associated with chondrodite and perhaps what may be forsterite. The spinel ranges in size from tiny grain-like crystals to those that on occasion exceed the size of a pea." Januzzi (1976).
Reference: Rocks & Minerals (1995) 70:396-409; Januzzi, Ronald E. (1976): Mineral Localities of Connecticut and Southeastern New York State. The Mineralogical Press, Danbury, Connecticut: 192-201.
'Stilbite subgroup'
Description: "reported on the Sugar Hollow Road outside of Danbury going south on Route 7" Januzzi (1959)
Reference: Januzzi, Ronald E. (1959): The Minerals of Western Connecticut and Southeastern New York. The Mineralogical Press, Danbury, Connecticut.
Talc
Formula: Mg3Si4O10(OH)2
Reference: Manchester, James G. (1931): The Minerals of New York City and Its Environs. New York Mineralogical Club Bulletin: 3(1): 70.
Thorite
Formula: Th(SiO4)
Thorite var: Calciothorite
Formula: (Th,Ca2)SiO4 · 3.5H2O
Description: Speculation.
Reference: Januzzi, Ronald E. (1976): Mineral Localities of Connecticut and Southeastern New York State. The Mineralogical Press, Danbury, Connecticut: 192-201.
'Thorogummite'
Formula: (Th,U)(SiO4)1-x(OH)4x
Habit: psuedomorphs after thorite
Colour: yellowish
Description: "as small yellowish pulverulent masses having a dull luster, to material of a more compact nature with a waxy luster; it is evidently pseudomorphous after crystals of thorite." Januzzi (1976)
Reference: Januzzi, Ronald E. (1976): Mineral Localities of Connecticut and Southeastern New York State. The Mineralogical Press, Danbury, Connecticut: 192-201.
Titanite
Formula: CaTi(SiO4)O
Localities: Reported from at least 6 localities in this region.
Description: "in isolated rock masses at Mill Ridge, Danbury" Januzzi (1959)
Reference: Januzzi, Ronald E. (1959): The Minerals of Western Connecticut and Southeastern New York. The Mineralogical Press, Danbury, Connecticut.
'Tourmaline' ?
Formula: A(D3)G6(Si6O18)(BO3)3X3Z
Tremolite
Formula: ☐{Ca2}{Mg5}(Si8O22)(OH)2
Zircon
Formula: Zr(SiO4)
Habit: prismatic bi-pyramidal
Colour: brown
Description: "An outstanding isolated occurrence of zircon crystals was discovered by John and Robert Gruss in a granite matrix at Mill Ridge, west of Danbury. The crystals were opaque, brown prismatic bi-pyramidal contact twins over an inch in length." Januzzi (1959).
Reference: Januzzi, Ronald E. (1959): The Minerals of Western Connecticut and Southeastern New York. The Mineralogical Press, Danbury, Connecticut.
Zircon var: Cyrtolite ?
Formula: Zr[(SiO4),(OH)4]
Description: Included in a list of minerals without details.
Reference: Januzzi, Ronald E. (1976): Mineral Localities of Connecticut and Southeastern New York State. The Mineralogical Press, Danbury, Connecticut: 192-201.

List of minerals arranged by Strunz 10th Edition classification

Group 1 - Elements
Graphite1.CB.05aC
Group 2 - Sulphides and Sulfosalts
Chalcopyrite2.CB.10aCuFeS2
Molybdenite2.EA.30MoS2
Pyrite2.EB.05aFeS2
Pyrrhotite2.CC.10Fe7S8
Sphalerite2.CB.05aZnS
Group 3 - Halides
Fluorite ?3.AB.25CaF2
Group 4 - Oxides and Hydroxides
Goethite ?4.00.α-Fe3+O(OH)
Hematite4.CB.05Fe2O3
Ilmenite4.CB.05Fe2+TiO3
Magnetite4.BB.05Fe2+Fe3+2O4
Opal4.DA.10SiO2 · nH2O
var: Opal-AN4.DA.10SiO2 · nH2O
Quartz4.DA.05SiO2
Rutile4.DB.05TiO2
Spinel4.BB.05MgAl2O4
Group 5 - Nitrates and Carbonates
Aragonite5.AB.15CaCO3
Calcite5.AB.05CaCO3
Dolomite5.AB.10CaMg(CO3)2
Rutherfordine ?5.EB.05(UO2)CO3
Group 7 - Sulphates, Chromates, Molybdates and Tungstates
Baryte7.AD.35BaSO4
Celestine7.AD.35SrSO4
Gypsum7.CD.40CaSO4 · 2H2O
var: Selenite7.CD.40CaSO4 · 2H2O
Scheelite7.GA.05Ca(WO4)
Group 8 - Phosphates, Arsenates and Vanadates
Fluorapatite8.BN.05Ca5(PO4)3F
Group 9 - Silicates
Actinolite9.DE.10☐{Ca2}{Mg4.5-2.5Fe0.5-2.5}(Si8O22)(OH)2
Albite9.FA.35Na(AlSi3O8)
var: Oligoclase9.FA.35(Na,Ca)[Al(Si,Al)Si2O8]
Almandine9.AD.25Fe2+3Al2(SiO4)3
Augite9.DA.15(CaxMgyFez)(Mgy1Fez1)Si2O6
Chondrodite9.AF.45(Mg,Fe2+)5(SiO4)2(F,OH)2
Clinochlore9.EC.55Mg5Al(AlSi3O10)(OH)8
Danburite (TL)9.FA.65CaB2Si2O8
Datolite9.AJ.20CaB(SiO4)(OH)
Diopside9.DA.15CaMgSi2O6
Dumortierite ?9.AJ.10(Al,Fe3+)7(SiO4)3(BO3)O3
Epidote ?9.BG.05a{Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
Epistilbite ?9.GD.45CaAl2Si6O16 · 5H2O
Forsterite9.AC.05Mg2SiO4
Laumontite ?9.GB.10CaAl2Si4O12 · 4H2O
Microcline9.FA.30K(AlSi3O8)
Muscovite9.EC.15KAl2(AlSi3O10)(OH)2
Orthoclase9.FA.30K(AlSi3O8)
Palygorskite ?9.EE.20(Mg,Al)5(Si,Al)8O20(OH)2 · 8H2O
Phlogopite9.EC.20KMg3(AlSi3O10)(OH)2
Prehnite ?9.DP.20Ca2Al2Si3O10(OH)2
Schorl9.CK.05Na(Fe2+3)Al6(Si6O18)(BO3)3(OH)3(OH)
Sepiolite9.EE.25Mg4(Si6O15)(OH)2 · 6H2O
Talc9.EC.05Mg3Si4O10(OH)2
Thorite9.AD.30Th(SiO4)
var: Calciothorite ?9.AD.30(Th,Ca2)SiO4 · 3.5H2O
Titanite9.AG.15CaTi(SiO4)O
Tremolite9.DE.10☐{Ca2}{Mg5}(Si8O22)(OH)2
Zircon9.AD.30Zr(SiO4)
var: Cyrtolite ?9.AD.30Zr[(SiO4),(OH)4]
Unclassified Minerals, Rocks, etc.
'Albite-Anorthite Series'-
'Allanite Group'-{A12+REE3+}{M3+2M32+}(Si2O7)(SiO4)O(OH)
'Amphibole Supergroup'-AX2Z5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
'var: Uralite' ?-AX2Z5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
'Biotite'-K(Fe2+/Mg)2(Al/Fe3+/Mg)([Si/Al]Si2O10)(OH/F)2
'Brewsterite' ?-
'Chabazite' ?-
'Chlorite Group'-
'Columbite-(Fe)-Columbite-(Mn) Series'-
'Fayalite-Forsterite Series'-
'Feldspar Group'-
'Garnet Group'-X3Z2(SiO4)3
'Heulandite subgroup' ?-
'Hornblende'-
'Limonite'-(Fe,O,OH,H2O)
'Moonstone'-
'Pyroxene Group'-
'Scapolite'-
'Serpentine Subgroup' ?-D3[Si2O5](OH)4 D = Mg, Fe, Ni, Mn, Al, Zn
'Stilbite subgroup'-
'Thorogummite'-(Th,U)(SiO4)1-x(OH)4x
'Tourmaline' ?-A(D3)G6(Si6O18)(BO3)3X3Z

List of minerals arranged by Dana 8th Edition classification

Group 1 - NATIVE ELEMENTS AND ALLOYS
Semi-metals and non-metals
Graphite1.3.6.2C
Group 2 - SULFIDES
AmXp, with m:p = 1:1
Pyrrhotite2.8.10.1Fe7S8
Sphalerite2.8.2.1ZnS
AmBnXp, with (m+n):p = 1:1
Chalcopyrite2.9.1.1CuFeS2
AmBnXp, with (m+n):p = 1:2
Molybdenite2.12.10.1MoS2
Pyrite2.12.1.1FeS2
Group 4 - SIMPLE OXIDES
A2X3
Hematite4.3.1.2Fe2O3
Ilmenite4.3.5.1Fe2+TiO3
AX2
Rutile4.4.1.1TiO2
Group 6 - HYDROXIDES AND OXIDES CONTAINING HYDROXYL
XO(OH)
Goethite ?6.1.1.2α-Fe3+O(OH)
Group 7 - MULTIPLE OXIDES
AB2X4
Magnetite7.2.2.3Fe2+Fe3+2O4
Spinel7.2.1.1MgAl2O4
Group 9 - NORMAL HALIDES
AX2
Fluorite ?9.2.1.1CaF2
Group 14 - ANHYDROUS NORMAL CARBONATES
A(XO3)
Calcite14.1.1.1CaCO3
Rutherfordine ?14.1.4.1(UO2)CO3
AB(XO3)2
Dolomite14.2.1.1CaMg(CO3)2
Group 28 - ANHYDROUS ACID AND NORMAL SULFATES
AXO4
Baryte28.3.1.1BaSO4
Celestine28.3.1.2SrSO4
Group 29 - HYDRATED ACID AND NORMAL SULFATES
AXO4·xH2O
Gypsum29.6.3.1CaSO4 · 2H2O
Group 41 - ANHYDROUS PHOSPHATES, ETC.CONTAINING HYDROXYL OR HALOGEN
A5(XO4)3Zq
Fluorapatite41.8.1.1Ca5(PO4)3F
Group 48 - ANHYDROUS MOLYBDATES AND TUNGSTATES
AXO4
Scheelite48.1.2.1Ca(WO4)
Group 51 - NESOSILICATES Insular SiO4 Groups Only
Insular SiO4 Groups Only with all cations in octahedral [6] coordination
Forsterite51.3.1.2Mg2SiO4
Insular SiO4 Groups Only with cations in [6] and >[6] coordination
Almandine51.4.3a.2Fe2+3Al2(SiO4)3
Insular SiO4 Groups Only with cations in >[6] coordination
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 [6] coordination only
Chondrodite52.3.2b.2(Mg,Fe2+)5(SiO4)2(F,OH)2
Insular SiO4 Groups and O, OH, F, and H2O with cations in [6] and/or >[6] coordination
Titanite52.4.3.1CaTi(SiO4)O
Group 54 - NESOSILICATES Borosilicates and Some Beryllosilicates
Borosilicates and Some Beryllosilicates with (BO3)
Dumortierite ?54.1.2.1(Al,Fe3+)7(SiO4)3(BO3)O3
Borosilicates and Some Beryllosilicates with B in [4] coordination
Datolite54.2.1a.1CaB(SiO4)(OH)
Group 56 - SOROSILICATES Si2O7 Groups, With Additional O, OH, F and H2O
Si2O7 Groups and O, OH, F, and H2O with[Si2O7] with borate groups
Danburite (TL)56.3.1.1CaB2Si2O8
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)
Epidote ?58.2.1a.7{Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
Group 61 - CYCLOSILICATES Six-Membered Rings
Six-Membered Rings with borate groups
Schorl61.3.1.10Na(Fe2+3)Al6(Si6O18)(BO3)3(OH)3(OH)
Group 65 - INOSILICATES Single-Width,Unbranched Chains,(W=1)
Single-Width Unbranched Chains, W=1 with chains P=2
Augite65.1.3a.3(CaxMgyFez)(Mgy1Fez1)Si2O6
Diopside65.1.3a.1CaMgSi2O6
Group 66 - INOSILICATES Double-Width,Unbranched Chains,(W=2)
Amphiboles - Mg-Fe-Mn-Li subgroup
Tremolite66.1.3a.1☐{Ca2}{Mg5}(Si8O22)(OH)2
Group 71 - PHYLLOSILICATES Sheets of Six-Membered Rings
Sheets of 6-membered rings with 2:1 layers
Muscovite71.2.2a.1KAl2(AlSi3O10)(OH)2
Phlogopite71.2.2b.1KMg3(AlSi3O10)(OH)2
Talc71.2.1.3Mg3Si4O10(OH)2
Sheets of 6-membered rings interlayered 1:1, 2:1, and octahedra
Clinochlore71.4.1.4Mg5Al(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
Prehnite ?72.1.3.1Ca2Al2Si3O10(OH)2
Group 74 - PHYLLOSILICATES Modulated Layers
Modulated Layers with joined strips
Palygorskite ?74.3.1a.1(Mg,Al)5(Si,Al)8O20(OH)2 · 8H2O
Sepiolite74.3.1b.1Mg4(Si6O15)(OH)2 · 6H2O
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)
Orthoclase76.1.1.1K(AlSi3O8)
Group 77 - TECTOSILICATES Zeolites
Zeolite group - True zeolites
'Brewsterite' ?77.1.7.1
Epistilbite ?77.1.6.2CaAl2Si6O16 · 5H2O
Laumontite ?77.1.1.4CaAl2Si4O12 · 4H2O
Unclassified Minerals, Mixtures, etc.
Actinolite-☐{Ca2}{Mg4.5-2.5Fe0.5-2.5}(Si8O22)(OH)2
Albite
var: Oligoclase
-(Na,Ca)[Al(Si,Al)Si2O8]
'Albite-Anorthite Series'-
'Allanite Group'-{A12+REE3+}{M3+2M32+}(Si2O7)(SiO4)O(OH)
'Amphibole Supergroup'-AX2Z5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
'var: Uralite' ?-AX2Z5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
Aragonite-CaCO3
'Biotite'-K(Fe2+/Mg)2(Al/Fe3+/Mg)([Si/Al]Si2O10)(OH/F)2
'Chabazite' ?-
'Chlorite Group'-
'Columbite-(Fe)-Columbite-(Mn) Series'-
'Fayalite-Forsterite Series'-
'Feldspar Group'-
'Garnet Group'-X3Z2(SiO4)3
Gypsum
var: Selenite
-CaSO4 · 2H2O
'Heulandite subgroup' ?-
'Hornblende'-
'Limonite'-(Fe,O,OH,H2O)
'Moonstone'-
Opal
var: Opal-AN
-SiO2 · nH2O
'Pyroxene Group'-
'Scapolite'-
'Serpentine Subgroup' ?-D3[Si2O5](OH)4 D = Mg, Fe, Ni, Mn, Al, Zn
'Stilbite subgroup'-
Thorite
var: Calciothorite ?
-(Th,Ca2)SiO4 · 3.5H2O
'Tourmaline' ?-A(D3)G6(Si6O18)(BO3)3X3Z
Zircon
var: Cyrtolite ?
-Zr[(SiO4),(OH)4]

List of minerals for each chemical element

HHydrogen
H SepioliteMg4(Si6O15)(OH)2 · 6H2O
H BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg)([Si/Al]Si2O10)(OH/F)2
H TalcMg3Si4O10(OH)2
H Allanite Group{A12+REE3+}{M23+M32+}(Si2O7)(SiO4)O(OH)
H ClinochloreMg5Al(AlSi3O10)(OH)8
H Limonite(Fe,O,OH,H2O)
H MuscoviteKAl2(AlSi3O10)(OH)2
H PhlogopiteKMg3(AlSi3O10)(OH)2
H OpalSiO2 · nH2O
H Actinolite☐{Ca2}{Mg4.5-2.5Fe0.5-2.5}(Si8O22)(OH)2
H Thorogummite(Th,U)(SiO4)1-x(OH)4x
H Tremolite☐{Ca2}{Mg5}(Si8O22)(OH)2
H Amphibole SupergroupAX2Z5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
H Opal (var: Opal-AN)SiO2 · nH2O
H SchorlNa(Fe32+)Al6(Si6O18)(BO3)3(OH)3(OH)
H Gypsum (var: Selenite)CaSO4 · 2H2O
H DatoliteCaB(SiO4)(OH)
H GypsumCaSO4 · 2H2O
H EpistilbiteCaAl2Si6O16 · 5H2O
H Goethiteα-Fe3+O(OH)
H Zircon (var: Cyrtolite)Zr[(SiO4),(OH)4]
H Epidote{Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
H LaumontiteCaAl2Si4O12 · 4H2O
H PrehniteCa2Al2Si3O10(OH)2
H Serpentine SubgroupD3[Si2O5](OH)4 D = Mg, Fe, Ni, Mn, Al, Zn
H Amphibole Supergroup (var: Uralite)AX2Z5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
H Palygorskite(Mg,Al)5(Si,Al)8O20(OH)2 · 8H2O
H Thorite (var: Calciothorite)(Th,Ca2)SiO4 · 3.5H2O
BBoron
B DanburiteCaB2Si2O8
B SchorlNa(Fe32+)Al6(Si6O18)(BO3)3(OH)3(OH)
B DatoliteCaB(SiO4)(OH)
B TourmalineA(D3)G6(Si6O18)(BO3)3X3Z
B Dumortierite(Al,Fe3+)7(SiO4)3(BO3)O3
CCarbon
C CalciteCaCO3
C GraphiteC
C AragoniteCaCO3
C DolomiteCaMg(CO3)2
C Rutherfordine(UO2)CO3
OOxygen
O DanburiteCaB2Si2O8
O ZirconZr(SiO4)
O CalciteCaCO3
O SepioliteMg4(Si6O15)(OH)2 · 6H2O
O AlbiteNa(AlSi3O8)
O BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg)([Si/Al]Si2O10)(OH/F)2
O ForsteriteMg2SiO4
O Garnet GroupX3Z2(SiO4)3
O OrthoclaseK(AlSi3O8)
O RutileTiO2
O QuartzSiO2
O TalcMg3Si4O10(OH)2
O IlmeniteFe2+TiO3
O Allanite Group{A12+REE3+}{M23+M32+}(Si2O7)(SiO4)O(OH)
O TitaniteCaTi(SiO4)O
O ClinochloreMg5Al(AlSi3O10)(OH)8
O AragoniteCaCO3
O BaryteBaSO4
O Limonite(Fe,O,OH,H2O)
O MicroclineK(AlSi3O8)
O MuscoviteKAl2(AlSi3O10)(OH)2
O PhlogopiteKMg3(AlSi3O10)(OH)2
O DiopsideCaMgSi2O6
O ScheeliteCa(WO4)
O Chondrodite(Mg,Fe2+)5(SiO4)2(F,OH)2
O ThoriteTh(SiO4)
O AlmandineFe32+Al2(SiO4)3
O OpalSiO2 · nH2O
O DolomiteCaMg(CO3)2
O Actinolite☐{Ca2}{Mg4.5-2.5Fe0.5-2.5}(Si8O22)(OH)2
O Augite(CaxMgyFez)(Mgy1Fez1)Si2O6
O Thorogummite(Th,U)(SiO4)1-x(OH)4x
O Tremolite☐{Ca2}{Mg5}(Si8O22)(OH)2
O Amphibole SupergroupAX2Z5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
O FluorapatiteCa5(PO4)3F
O HematiteFe2O3
O MagnetiteFe2+Fe23+O4
O Opal (var: Opal-AN)SiO2 · nH2O
O SchorlNa(Fe32+)Al6(Si6O18)(BO3)3(OH)3(OH)
O CelestineSrSO4
O Gypsum (var: Selenite)CaSO4 · 2H2O
O SpinelMgAl2O4
O DatoliteCaB(SiO4)(OH)
O GypsumCaSO4 · 2H2O
O Albite (var: Oligoclase)(Na,Ca)[Al(Si,Al)Si2O8]
O TourmalineA(D3)G6(Si6O18)(BO3)3X3Z
O EpistilbiteCaAl2Si6O16 · 5H2O
O Goethiteα-Fe3+O(OH)
O Zircon (var: Cyrtolite)Zr[(SiO4),(OH)4]
O Epidote{Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
O LaumontiteCaAl2Si4O12 · 4H2O
O PrehniteCa2Al2Si3O10(OH)2
O Serpentine SubgroupD3[Si2O5](OH)4 D = Mg, Fe, Ni, Mn, Al, Zn
O Amphibole Supergroup (var: Uralite)AX2Z5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
O Dumortierite(Al,Fe3+)7(SiO4)3(BO3)O3
O Palygorskite(Mg,Al)5(Si,Al)8O20(OH)2 · 8H2O
O Rutherfordine(UO2)CO3
O Thorite (var: Calciothorite)(Th,Ca2)SiO4 · 3.5H2O
FFluorine
F BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg)([Si/Al]Si2O10)(OH/F)2
F Chondrodite(Mg,Fe2+)5(SiO4)2(F,OH)2
F Amphibole SupergroupAX2Z5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
F FluorapatiteCa5(PO4)3F
F FluoriteCaF2
F Amphibole Supergroup (var: Uralite)AX2Z5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
NaSodium
Na AlbiteNa(AlSi3O8)
Na SchorlNa(Fe32+)Al6(Si6O18)(BO3)3(OH)3(OH)
Na Albite (var: Oligoclase)(Na,Ca)[Al(Si,Al)Si2O8]
MgMagnesium
Mg SepioliteMg4(Si6O15)(OH)2 · 6H2O
Mg BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg)([Si/Al]Si2O10)(OH/F)2
Mg ForsteriteMg2SiO4
Mg TalcMg3Si4O10(OH)2
Mg ClinochloreMg5Al(AlSi3O10)(OH)8
Mg PhlogopiteKMg3(AlSi3O10)(OH)2
Mg DiopsideCaMgSi2O6
Mg Chondrodite(Mg,Fe2+)5(SiO4)2(F,OH)2
Mg DolomiteCaMg(CO3)2
Mg Actinolite☐{Ca2}{Mg4.5-2.5Fe0.5-2.5}(Si8O22)(OH)2
Mg Augite(CaxMgyFez)(Mgy1Fez1)Si2O6
Mg Tremolite☐{Ca2}{Mg5}(Si8O22)(OH)2
Mg SpinelMgAl2O4
Mg Serpentine SubgroupD3[Si2O5](OH)4 D = Mg, Fe, Ni, Mn, Al, Zn
Mg Palygorskite(Mg,Al)5(Si,Al)8O20(OH)2 · 8H2O
AlAluminium
Al AlbiteNa(AlSi3O8)
Al BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg)([Si/Al]Si2O10)(OH/F)2
Al OrthoclaseK(AlSi3O8)
Al ClinochloreMg5Al(AlSi3O10)(OH)8
Al MicroclineK(AlSi3O8)
Al MuscoviteKAl2(AlSi3O10)(OH)2
Al PhlogopiteKMg3(AlSi3O10)(OH)2
Al AlmandineFe32+Al2(SiO4)3
Al Amphibole SupergroupAX2Z5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
Al SchorlNa(Fe32+)Al6(Si6O18)(BO3)3(OH)3(OH)
Al SpinelMgAl2O4
Al Albite (var: Oligoclase)(Na,Ca)[Al(Si,Al)Si2O8]
Al EpistilbiteCaAl2Si6O16 · 5H2O
Al Epidote{Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
Al LaumontiteCaAl2Si4O12 · 4H2O
Al PrehniteCa2Al2Si3O10(OH)2
Al Serpentine SubgroupD3[Si2O5](OH)4 D = Mg, Fe, Ni, Mn, Al, Zn
Al Amphibole Supergroup (var: Uralite)AX2Z5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
Al Dumortierite(Al,Fe3+)7(SiO4)3(BO3)O3
Al Palygorskite(Mg,Al)5(Si,Al)8O20(OH)2 · 8H2O
SiSilicon
Si DanburiteCaB2Si2O8
Si ZirconZr(SiO4)
Si SepioliteMg4(Si6O15)(OH)2 · 6H2O
Si AlbiteNa(AlSi3O8)
Si BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg)([Si/Al]Si2O10)(OH/F)2
Si ForsteriteMg2SiO4
Si Garnet GroupX3Z2(SiO4)3
Si OrthoclaseK(AlSi3O8)
Si QuartzSiO2
Si TalcMg3Si4O10(OH)2
Si Allanite Group{A12+REE3+}{M23+M32+}(Si2O7)(SiO4)O(OH)
Si TitaniteCaTi(SiO4)O
Si ClinochloreMg5Al(AlSi3O10)(OH)8
Si MicroclineK(AlSi3O8)
Si MuscoviteKAl2(AlSi3O10)(OH)2
Si PhlogopiteKMg3(AlSi3O10)(OH)2
Si DiopsideCaMgSi2O6
Si Chondrodite(Mg,Fe2+)5(SiO4)2(F,OH)2
Si ThoriteTh(SiO4)
Si AlmandineFe32+Al2(SiO4)3
Si OpalSiO2 · nH2O
Si Actinolite☐{Ca2}{Mg4.5-2.5Fe0.5-2.5}(Si8O22)(OH)2
Si Augite(CaxMgyFez)(Mgy1Fez1)Si2O6
Si Thorogummite(Th,U)(SiO4)1-x(OH)4x
Si Tremolite☐{Ca2}{Mg5}(Si8O22)(OH)2
Si Amphibole SupergroupAX2Z5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
Si Opal (var: Opal-AN)SiO2 · nH2O
Si SchorlNa(Fe32+)Al6(Si6O18)(BO3)3(OH)3(OH)
Si DatoliteCaB(SiO4)(OH)
Si Albite (var: Oligoclase)(Na,Ca)[Al(Si,Al)Si2O8]
Si TourmalineA(D3)G6(Si6O18)(BO3)3X3Z
Si EpistilbiteCaAl2Si6O16 · 5H2O
Si Zircon (var: Cyrtolite)Zr[(SiO4),(OH)4]
Si Epidote{Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
Si LaumontiteCaAl2Si4O12 · 4H2O
Si PrehniteCa2Al2Si3O10(OH)2
Si Serpentine SubgroupD3[Si2O5](OH)4 D = Mg, Fe, Ni, Mn, Al, Zn
Si Amphibole Supergroup (var: Uralite)AX2Z5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
Si Dumortierite(Al,Fe3+)7(SiO4)3(BO3)O3
Si Palygorskite(Mg,Al)5(Si,Al)8O20(OH)2 · 8H2O
Si Thorite (var: Calciothorite)(Th,Ca2)SiO4 · 3.5H2O
PPhosphorus
P FluorapatiteCa5(PO4)3F
SSulfur
S PyriteFeS2
S ChalcopyriteCuFeS2
S BaryteBaSO4
S PyrrhotiteFe7S8
S MolybdeniteMoS2
S CelestineSrSO4
S Gypsum (var: Selenite)CaSO4 · 2H2O
S SphaleriteZnS
S GypsumCaSO4 · 2H2O
ClChlorine
Cl Amphibole SupergroupAX2Z5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
Cl Amphibole Supergroup (var: Uralite)AX2Z5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
KPotassium
K BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg)([Si/Al]Si2O10)(OH/F)2
K OrthoclaseK(AlSi3O8)
K MicroclineK(AlSi3O8)
K MuscoviteKAl2(AlSi3O10)(OH)2
K PhlogopiteKMg3(AlSi3O10)(OH)2
CaCalcium
Ca DanburiteCaB2Si2O8
Ca CalciteCaCO3
Ca TitaniteCaTi(SiO4)O
Ca AragoniteCaCO3
Ca DiopsideCaMgSi2O6
Ca ScheeliteCa(WO4)
Ca DolomiteCaMg(CO3)2
Ca Actinolite☐{Ca2}{Mg4.5-2.5Fe0.5-2.5}(Si8O22)(OH)2
Ca Augite(CaxMgyFez)(Mgy1Fez1)Si2O6
Ca Tremolite☐{Ca2}{Mg5}(Si8O22)(OH)2
Ca FluorapatiteCa5(PO4)3F
Ca Gypsum (var: Selenite)CaSO4 · 2H2O
Ca DatoliteCaB(SiO4)(OH)
Ca GypsumCaSO4 · 2H2O
Ca Albite (var: Oligoclase)(Na,Ca)[Al(Si,Al)Si2O8]
Ca EpistilbiteCaAl2Si6O16 · 5H2O
Ca FluoriteCaF2
Ca Epidote{Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
Ca LaumontiteCaAl2Si4O12 · 4H2O
Ca PrehniteCa2Al2Si3O10(OH)2
Ca Thorite (var: Calciothorite)(Th,Ca2)SiO4 · 3.5H2O
TiTitanium
Ti RutileTiO2
Ti IlmeniteFe2+TiO3
Ti TitaniteCaTi(SiO4)O
Ti Amphibole SupergroupAX2Z5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
Ti Amphibole Supergroup (var: Uralite)AX2Z5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
MnManganese
Mn Serpentine SubgroupD3[Si2O5](OH)4 D = Mg, Fe, Ni, Mn, Al, Zn
FeIron
Fe BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg)([Si/Al]Si2O10)(OH/F)2
Fe PyriteFeS2
Fe IlmeniteFe2+TiO3
Fe ChalcopyriteCuFeS2
Fe Limonite(Fe,O,OH,H2O)
Fe PyrrhotiteFe7S8
Fe AlmandineFe32+Al2(SiO4)3
Fe Actinolite☐{Ca2}{Mg4.5-2.5Fe0.5-2.5}(Si8O22)(OH)2
Fe Augite(CaxMgyFez)(Mgy1Fez1)Si2O6
Fe HematiteFe2O3
Fe MagnetiteFe2+Fe23+O4
Fe SchorlNa(Fe32+)Al6(Si6O18)(BO3)3(OH)3(OH)
Fe Goethiteα-Fe3+O(OH)
Fe Epidote{Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
Fe Serpentine SubgroupD3[Si2O5](OH)4 D = Mg, Fe, Ni, Mn, Al, Zn
NiNickel
Ni Serpentine SubgroupD3[Si2O5](OH)4 D = Mg, Fe, Ni, Mn, Al, Zn
CuCopper
Cu ChalcopyriteCuFeS2
ZnZinc
Zn SphaleriteZnS
Zn Serpentine SubgroupD3[Si2O5](OH)4 D = Mg, Fe, Ni, Mn, Al, Zn
SrStrontium
Sr CelestineSrSO4
ZrZirconium
Zr ZirconZr(SiO4)
Zr Zircon (var: Cyrtolite)Zr[(SiO4),(OH)4]
MoMolybdenum
Mo MolybdeniteMoS2
BaBarium
Ba BaryteBaSO4
WTungsten
W ScheeliteCa(WO4)
ThThorium
Th ThoriteTh(SiO4)
Th Thorogummite(Th,U)(SiO4)1-x(OH)4x
Th Thorite (var: Calciothorite)(Th,Ca2)SiO4 · 3.5H2O
UUranium
U Thorogummite(Th,U)(SiO4)1-x(OH)4x
U Rutherfordine(UO2)CO3

References

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Year (asc) Year (desc) Author (A-Z) Author (Z-A)
Manchester, James G. (1931): The Minerals of New York City and Its Environs. New York Mineralogical Club Bulletin: 3 (1): 70.
Clarke, James W. (1958): The Bedrock Geology of the Danbury Quadrangle. State Geological and Natural History Survey of Connecticut Quadrangle Report No. 7.
Januzzi, Ronald E. (1959): The Minerals of Western Connecticut and Southeastern New York. The Mineralogical Press, Danbury, Connecticut.
Pawloski, John A. (1965): Two Interesting Zeolites from Connecticut. Rocks and Minerals: 40(7): 494.
Januzzi, Ronald E. (1976): Mineral Localities of Connecticut and Southeastern New York State. The Mineralogical Press, Danbury, Connecticut.
Tschernich, Rudy. (1992): Zeolites of the World. Geoscience Press, Phoenix: 85, 154.
Januzzi, Ronald E. (1994), Mineral Data Book - Western Connecticut and Environs. The Mineralogical Press, Danbury, Connecticut.

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Localities in this Region


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