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

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Key
Locality type:
Largest Settlements:
PlacePopulation
Windham23,072 (2017)
Willimantic17,737 (2017)
Killingly Center17,282 (2017)
Plainfield15,498 (2017)
Thompson9,358 (2017)
Putnam7,214 (2017)
Other Languages:
French:
Comté de Windham, Connecticut, États-Unis
German:
Windham County, Connecticut, Vereinigte Staaten
Italian:
Contea di Windham, Connecticut, Stati Uniti d'America
Russian:
Уиндем, Коннектикут, Соединённые Штаты Америки
Simplified Chinese:
溫德姆縣, 康乃狄克州, 美国
Spanish:
Condado de Windham, Connecticut, Estados Unidos
Albanian:
Windham County, Connecticut, Shtetet e Bashkuara të Amerikës
Arabic:
مقاطعة ويندهام, كونيتيكت, الولايات المتحدة
Armenian:
Ուինդհամ շրջան, Կոնեկտիկուտ, Ամերիկայի Միացյալ Նահանգներ
Basque:
Windham konderria, Connecticut
Bavarian:
Windham County, Connecticut, Vaoanigte Stootn
Bishnupriya Manipuri:
ৱয়িন্ডহাম কাউন্টি, কানেকটিকাট, তিলপারাষ্ট্র
Bulgarian:
Уиндъм, Кънектикът, Съединени американски щати
Cebuano:
Windham County, Connecticut
Dutch:
Windham County, Connecticut, Verenigde Staten
Estonian:
Windhami maakond, Connecticut, Ameerika Ühendriigid
Farsi/Persian:
شهرستان ویندهام، کنتیکت, کنتیکت, ایالات متحده آمریکا
Hungarian:
Windham megye, Connecticut, Amerikai Egyesült Államok
Indonesian:
Windham County, Connecticut, Amerika Serikat
Irish Gaelic:
Contae Windham, Connecticut, Stáit Aontaithe Mheiriceá
Japanese:
ウィンダム郡, コネチカット州, アメリカ合衆国
Low Saxon/Low German:
Windham County, Connecticut, USA
Min Dong Chinese:
Windham Gông, Connecticut
Norwegian:
Windham County, Connecticut, USA
Polish:
Hrabstwo Windham, Connecticut, Stany Zjednoczone
Portuguese:
Condado de Windham, Connecticut, Estados Unidos
Romanian:
Comitatul Windham, Connecticut, Statele Unite ale Americii
Serbian:
Округ Виндхам, Конектикат, Сједињене Америчке Државе
Serbo-Croatian:
Windham County, Connecticut, Sjedinjene Američke Države
Swedish:
Windham County, Connecticut, USA
Turkish:
Windham County, Connecticut, Amerika Birleşik Devletleri
Ukrainian:
Віндем, Коннектикут, Сполучені Штати Америки
Urdu:
وینڈم کاؤنٹی، کنیکٹیکٹ, کنیکٹیکٹ, ریاستہائے متحدہ امریکا
Vietnamese:
Quận Windham, Connecticut, Chủng Quốc Hoa Kỳ
Waray:
Condado han Windham, Connecticut, Estados Unidos
Western Punjabi:
ونڈہیم کاؤنٹی، کنکٹیکٹ, کنکٹیکٹ, امریکہ


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Standard Detailed Gallery Strunz Dana Chemical Elements

Mineral List

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

31 valid minerals.

Rock Types Recorded

Note: 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

Select Rock List Type

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: Elongated prismatic crystals to 0.5 cm in voids with stilbite, chlorite, and goethite after pyrite.
Reference: Harold Moritz collection
Albite
Formula: Na(AlSi3O8)
Reference: Wells, H. L. (1887), Bismutosphaerite from Willimantic and Portland. American Journal of Science: s. 3, 34: 271-4.
'Allanite Group'
Formula: {A12+REE3+}{M3+2M32+}(Si2O7)(SiO4)O(OH)
Reference: Weber, Marcelle H. and Earle C. Sullivan. (1995): Connecticut Mineral Locality Index. Rocks & Minerals (Connecticut Issue): 70(6): 403.
Almandine
Formula: Fe2+3Al2(SiO4)3
Habit: modified dodecahedra
Colour: maroon
Description: Small (<1 cm) porphyroblasts in schist with staurolite.
Reference: Former Ed Force collection
Annite
Formula: KFe2+3(AlSi3O10)(OH)2
Habit: micaceous
Colour: black
Description: Most obvious in calcite-rich veins cutting annite gneiss (probably Tatnic Hill Formation).
Reference: Eric Quinter collection
Beryl
Formula: Be3Al2(Si6O18)
Habit: prismatic
Colour: aqua
Description: Subhedral crystals to 4 cm embedded in smoky quartz, albite, rosy microcline and fluorite.
Reference: Weber, Marcelle H. and Earle C. Sullivan. (1995): Connecticut Mineral Locality Index. Rocks & Minerals (Connecticut Issue): 70(6): 403.
Bismutite
Formula: (BiO)2CO3
Reference: Palache, C., Berman, H., & Frondel, C. (1951), The System of Mineralogy of James Dwight Dana and Edward Salisbury Dana, Yale University 1837-1892, Volume II: 261.
Calcite
Formula: CaCO3
Habit: anhedral
Colour: white
Description: Cleavable masses in veins with annite, pyrite, chlorite and rutile cutting annite gneiss (probably Tatnic Hill Formation).
Reference: Eric Quinter collection
Calcite var:
Formula: (Ca,Fe)CO3
Reference: Rocks & Minerals. Vol. 70. No. 6
'Chlorite Group'
Habit: granular masses
Colour: dark green
Description: In veins with calcite, annite, pyrite, and rutile cutting annite gneiss (probably Tatnic Hill Formation).
Reference: Eric Quinter collection
Clinochlore
Formula: Mg5Al(AlSi3O10)(OH)8
Reference: Yale Peabody Museum #3874 and #3879
Corundum
Formula: Al2O3
Reference: Rocks & Minerals. Vol. 70. No. 6
Fluorapatite
Formula: Ca5(PO4)3F
Habit: subhedral tabular
Colour: pastel blue to blue-green
Fluorescence: yellow
Description: Subhedral crystals to 4.5 cm in pegmatitic rocks.
Reference: Harold Moritz collection
Fluorite
Formula: CaF2
Colour: colorless to smoky
Fluorescence: blue under long wave UV
Description: massive grains with aquamarine, usually crumble out leaving voids
Reference: Weber, Marcelle H. and Earle C. Sullivan. (1995): Connecticut Mineral Locality Index. Rocks & Minerals (Connecticut Issue): 70(6): 403.
'Garnet Group'
Formula: X3Z2(SiO4)3
Reference: Wells, H. L. (1887), Bismutosphaerite from Willimantic and Portland. American Journal of Science: s. 3, 34: 271-4.
Goethite
Formula: α-Fe3+O(OH)
Habit: cubic pseudomorphs
Colour: brown
Description: Pseudomorphs after cubic pyrite approx 1mm in voids with stilbite, chlorite, and actinolite.
Reference: Harold Moritz collection
Graphite
Formula: C
Reference: Gems and Minerals of America - Jay Ellis Ransom-1974
Hematite
Formula: Fe2O3
Reference: Rocks & Minerals. Vol. 70. No. 6
'Hornblende'
Reference: Schooner, Richard. (1961): The Mineralogy of Connecticut. Fluorescent House, Branford, Connecticut.
Kaolinite
Formula: Al2(Si2O5)(OH)4
Reference: Samuel Robinson (1825) A Catalogue of American Minerals, with their localities. Boston
Kyanite
Formula: Al2(SiO4)O
Reference: Rocks & Minerals. Vol. 70. No. 6
'Limonite'
Formula: (Fe,O,OH,H2O)
Reference: Gems and Minerals of America - Jay Ellis Ransom-1974
Magnetite
Formula: Fe2+Fe3+2O4
Reference: Weber, Marcelle H. and Earle C. Sullivan. (1995): Connecticut Mineral Locality Index. Rocks & Minerals (Connecticut Issue): 70(6): 403.
Microcline
Formula: K(AlSi3O8)
Reference: Wells, H. L. (1887), Bismutosphaerite from Willimantic and Portland. American Journal of Science: s. 3, 34: 271-4.
Muscovite
Formula: KAl2(AlSi3O10)(OH)2
Reference: Rocks & Minerals. Vol. 70. No. 6
Muscovite var:
Formula: K(Al,Cr)3Si3O10(OH)2
Reference: Rocks & Minerals. Vol. 70. No. 6
Prehnite
Formula: Ca2Al2Si3O10(OH)2
Reference: Personal collection of Mr. Jeremy Zolan.
Pyrite
Formula: FeS2
Habit: cubic
Description: 1mm crystals pseudomorphed by goethite in voids with stilbite, chlorite, actinolite.
Reference: Harold Moritz collection
Pyrrhotite
Formula: Fe1-xS
Reference: Weber, Marcelle H. and Earle C. Sullivan. (1995): Connecticut Mineral Locality Index. Rocks & Minerals (Connecticut Issue): 70(6): 403.
Quartz
Formula: SiO2
Localities: Reported from at least 12 localities in this region.
Habit: short to elongated prisms, scepter overgrowths
Colour: colorless to milky, pale purple
Description: Voids of all sizes host subparallel, prismatic quartz on the walls, which grew from grains in the brecciated quartzite. Crystals can be colorless and clear or milky with parasitic "corn-cob" crystals. Scepter overgrowths, some amethystine, also occur. Crystals can reach 8 cm.
Reference: Clark, Bill. (2001). Connecticut Quartz: Interesting Specimens from a former Collecting Site. Rock & Gem: 31(8).
Quartz var:
Formula: SiO2
Habit: short to complex scepter overgrowths on prismatic quartz
Colour: light purple, zoned
Description: As scepter overgrowths on other quartz.
Reference: Clark, Bill. (2001). Connecticut Quartz: Interesting Specimens from a former Collecting Site. Rock & Gem: 31(8).
Quartz var:
Formula: SiO2
Habit: short to elongated prisms, scepter overgrowths
Colour: milky white
Description: Voids of all sizes host subparallel, prismatic quartz on the walls, which grew from grains in the brecciated quartzite. Crystals can be colorless and clear or milky with parasitic "corn-cob" crystals. Scepter overgrowths also occur. Crystals can reach 8 cm.
Reference: Clark, Bill. (2001). Connecticut Quartz: Interesting Specimens from a former Collecting Site. Rock & Gem: 31(8).
Quartz var:
Formula: SiO2
Reference: Former Ed force collection
Quartz var:
Formula: SiO2
Description: Described as occurring in "fine crystals". Perhaps it is the source of this unattributed specimen: http://www.mindat.org/photo-472700.html
Reference: Wells, H. L. (1887), Bismutosphaerite from Willimantic and Portland. American Journal of Science: s. 3, 34: 271-4.
Rutile
Formula: TiO2
Reference: Rocks & Minerals. Vol. 70. No. 6
'Scapolite'
Habit: elongated prismatic with square cross-section
Colour: white
Fluorescence: pink under SW, white under MW and LW UV
Description: Bar-shaped crystals to about 3 cm in quartz. From an unrecorded locality, formerly in the John Legro collection from the 1920s.
Reference: Former John Legro collection
Schorl
Formula: Na(Fe2+3)Al6(Si6O18)(BO3)3(OH)3(OH)
Reference: Rocks & Minerals. Vol. 70. No. 6
Sillimanite
Formula: Al2(SiO4)O
Habit: elongated prisms
Colour: clove brown
Description: Vitreous, translucent, somewhat chatoyant, clove brown crystals to 4 cm in granular quartz with magnetite are from an unspecified location.
Reference: Henry Minot photo; Yale-Peabody Museum collection; Harold Moritz collection; Hurlbut, Cornelius S., Jr. and Cornelis Klein. (1977), Manual of Mineralogy (after James D. Dana) 19th Edition: Wiley & Sons: 352.; Schairer, J. F. (1931), The Minerals of Connecticut. State Geological and Natural History Survey Bulletin 51.
Staurolite
Formula: Fe2+2Al9Si4O23(OH)
Habit: elongated prismatic
Colour: dark brown
Description: Small (<1 cm) porphyroblasts in schist with almandine.
Reference: Former Ed Force collection
Stilbite-Ca
Formula: NaCa4[Al9Si27O72] · nH2O
Habit: Rectangular crystals to wheat-sheaf aggregates
Colour: yellow-orange
Description: Crystal aggregates to 1 cm in voids with actinolite, chlorite and goethite after pyrite.
Reference: Harold Moritz collection
Titanite
Formula: CaTi(SiO4)O
Habit: rectangular, tabular prisms
Colour: yellow-green
Description: Schooner (1961) states: "Golden crystals, up to a couple of inches across, and fairly thick, have been collected, by the author, at the Mansfield Hollow Dam; they accompany hornblende."
Reference: Schooner, Richard. (1961): The Mineralogy of Connecticut. Fluorescent House, Branford, Connecticut.
Topaz
Formula: Al2(SiO4)(F,OH)2
Reference: Dorothy M. Schlegal (1957) Gem Stones of the United States : USGS Bulletin 1042-G
Tremolite
Formula: ☐{Ca2}{Mg5}(Si8O22)(OH)2
Reference: Rocks & Minerals. Vol. 70. No. 6

Gallery:

List of minerals arranged by Strunz 10th Edition classification

Group 1 - Elements
Graphite1.CB.05aC
Group 2 - Sulphides and Sulfosalts
Pyrite2.EB.05aFeS2
Pyrrhotite2.CC.10Fe1-xS
Group 3 - Halides
Fluorite3.AB.25CaF2
Group 4 - Oxides and Hydroxides
Corundum4.CB.05Al2O3
Goethite4.00.α-Fe3+O(OH)
Hematite4.CB.05Fe2O3
Magnetite4.BB.05Fe2+Fe3+2O4
Quartz4.DA.05SiO2
var: Amethyst4.DA.05SiO2
var: Milky Quartz4.DA.05SiO2
var: Rose Quartz4.DA.05SiO2
var: Smoky Quartz4.DA.05SiO2
Rutile4.DB.05TiO2
Group 5 - Nitrates and Carbonates
Bismutite5.BE.25(BiO)2CO3
Calcite5.AB.05CaCO3
var: Ferroan Calcite5.AB.05(Ca,Fe)CO3
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)
Almandine9.AD.25Fe2+3Al2(SiO4)3
Annite9.EC.20KFe2+3(AlSi3O10)(OH)2
Beryl9.CJ.05Be3Al2(Si6O18)
Clinochlore9.EC.55Mg5Al(AlSi3O10)(OH)8
Kaolinite9.ED.05Al2(Si2O5)(OH)4
Kyanite9.AF.15Al2(SiO4)O
Microcline9.FA.30K(AlSi3O8)
Muscovite9.EC.15KAl2(AlSi3O10)(OH)2
var: Fuchsite9.EC.15K(Al,Cr)3Si3O10(OH)2
Prehnite9.DP.20Ca2Al2Si3O10(OH)2
Schorl9.CK.05Na(Fe2+3)Al6(Si6O18)(BO3)3(OH)3(OH)
Sillimanite9.AF.05Al2(SiO4)O
Staurolite9.AF.30Fe2+2Al9Si4O23(OH)
Stilbite-Ca9.GE.10NaCa4[Al9Si27O72] · nH2O
Titanite9.AG.15CaTi(SiO4)O
Topaz9.AF.35Al2(SiO4)(F,OH)2
Tremolite9.DE.10☐{Ca2}{Mg5}(Si8O22)(OH)2
Unclassified Minerals, Rocks, etc.
'Allanite Group'-{A12+REE3+}{M3+2M32+}(Si2O7)(SiO4)O(OH)
'Chlorite Group'-
'Garnet Group'-X3Z2(SiO4)3
'Hornblende'-
'Limonite'-(Fe,O,OH,H2O)
'Scapolite'-

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
Pyrrhotite2.8.10.1Fe1-xS
AmBnXp, with (m+n):p = 1:2
Pyrite2.12.1.1FeS2
Group 4 - SIMPLE OXIDES
A2X3
Corundum4.3.1.1Al2O3
Hematite4.3.1.2Fe2O3
AX2
Rutile4.4.1.1TiO2
Group 6 - HYDROXIDES AND OXIDES CONTAINING HYDROXYL
XO(OH)
Goethite6.1.1.2α-Fe3+O(OH)
Group 7 - MULTIPLE OXIDES
AB2X4
Magnetite7.2.2.3Fe2+Fe3+2O4
Group 9 - NORMAL HALIDES
AX2
Fluorite9.2.1.1CaF2
Group 14 - ANHYDROUS NORMAL CARBONATES
A(XO3)
Calcite14.1.1.1CaCO3
Group 16a - ANHYDROUS CARBONATES CONTAINING HYDROXYL OR HALOGEN
Bismutite16a.3.5.1(BiO)2CO3
Group 41 - ANHYDROUS PHOSPHATES, ETC.CONTAINING HYDROXYL OR HALOGEN
A5(XO4)3Zq
Fluorapatite41.8.1.1Ca5(PO4)3F
Group 51 - NESOSILICATES Insular SiO4 Groups Only
Insular SiO4 Groups Only with cations in [6] and >[6] coordination
Almandine51.4.3a.2Fe2+3Al2(SiO4)3
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
Kyanite52.2.2c.1Al2(SiO4)O
Sillimanite52.2.2a.1Al2(SiO4)O
Staurolite52.2.3.1Fe2+2Al9Si4O23(OH)
Insular SiO4 Groups and O, OH, F, and H2O with cations in [6] coordination only
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
Titanite52.4.3.1CaTi(SiO4)O
Group 61 - CYCLOSILICATES Six-Membered Rings
Six-Membered Rings with [Si6O18] rings; possible (OH) and Al substitution
Beryl61.1.1.1Be3Al2(Si6O18)
Six-Membered Rings with borate groups
Schorl61.3.1.10Na(Fe2+3)Al6(Si6O18)(BO3)3(OH)3(OH)
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
Annite71.2.2b.3KFe2+3(AlSi3O10)(OH)2
Muscovite71.2.2a.1KAl2(AlSi3O10)(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
Prehnite72.1.3.1Ca2Al2Si3O10(OH)2
Group 75 - TECTOSILICATES Si Tetrahedral Frameworks
Si Tetrahedral Frameworks - SiO2 with [4] coordinated Si
Quartz75.1.3.1SiO2
Group 76 - TECTOSILICATES Al-Si Framework
Al-Si Framework with Al-Si frameworks
Albite76.1.3.1Na(AlSi3O8)
Microcline76.1.1.5K(AlSi3O8)
Group 77 - TECTOSILICATES Zeolites
Zeolite group - True zeolites
Stilbite-Ca77.1.4.3NaCa4[Al9Si27O72] · nH2O
Unclassified Minerals, Mixtures, etc.
Actinolite-☐{Ca2}{Mg4.5-2.5Fe0.5-2.5}(Si8O22)(OH)2
'Allanite Group'-{A12+REE3+}{M3+2M32+}(Si2O7)(SiO4)O(OH)
Calcite
var: Ferroan Calcite
-(Ca,Fe)CO3
'Chlorite Group'-
'Garnet Group'-X3Z2(SiO4)3
'Hornblende'-
Kaolinite-Al2(Si2O5)(OH)4
'Limonite'-(Fe,O,OH,H2O)
Muscovite
var: Fuchsite
-K(Al,Cr)3Si3O10(OH)2
Quartz
var: Amethyst
-SiO2
var: Milky Quartz-SiO2
var: Rose Quartz-SiO2
var: Smoky Quartz-SiO2
'Scapolite'-

List of minerals for each chemical element

HHydrogen
H Allanite Group{A12+REE3+}{M23+M32+}(Si2O7)(SiO4)O(OH)
H M (var: Fuchsite)K(Al,Cr)3Si3O10(OH)2
H SchorlNa(Fe32+)Al6(Si6O18)(BO3)3(OH)3(OH)
H Tremolite☐{Ca2}{Mg5}(Si8O22)(OH)2
H ClinochloreMg5Al(AlSi3O10)(OH)8
H PrehniteCa2Al2Si3O10(OH)2
H Limonite(Fe,O,OH,H2O)
H TopazAl2(SiO4)(F,OH)2
H KaoliniteAl2(Si2O5)(OH)4
H MuscoviteKAl2(AlSi3O10)(OH)2
H Actinolite☐{Ca2}{Mg4.5-2.5Fe0.5-2.5}(Si8O22)(OH)2
H Goethiteα-Fe3+O(OH)
H Stilbite-CaNaCa4[Al9Si27O72] · nH2O
H AnniteKFe32+(AlSi3O10)(OH)2
H StauroliteFe22+Al9Si4O23(OH)
BeBeryllium
Be BerylBe3Al2(Si6O18)
BBoron
B SchorlNa(Fe32+)Al6(Si6O18)(BO3)3(OH)3(OH)
CCarbon
C C (var: Ferroan Calcite)(Ca,Fe)CO3
C GraphiteC
C Bismutite(BiO)2CO3
C CalciteCaCO3
OOxygen
O QuartzSiO2
O Q (var: Milky Quartz)SiO2
O Quartz (var: Amethyst)SiO2
O SillimaniteAl2(SiO4)O
O Quartz (var: Smoky Quartz)SiO2
O Allanite Group{A12+REE3+}{M23+M32+}(Si2O7)(SiO4)O(OH)
O BerylBe3Al2(Si6O18)
O MagnetiteFe2+Fe23+O4
O TitaniteCaTi(SiO4)O
O CorundumAl2O3
O Calcite (var: Ferroan Calcite)(Ca,Fe)CO3
O HematiteFe2O3
O KyaniteAl2(SiO4)O
O Muscovite (var: Fuchsite)K(Al,Cr)3Si3O10(OH)2
O RutileTiO2
O SchorlNa(Fe32+)Al6(Si6O18)(BO3)3(OH)3(OH)
O Tremolite☐{Ca2}{Mg5}(Si8O22)(OH)2
O ClinochloreMg5Al(AlSi3O10)(OH)8
O PrehniteCa2Al2Si3O10(OH)2
O Limonite(Fe,O,OH,H2O)
O TopazAl2(SiO4)(F,OH)2
O Bismutite(BiO)2CO3
O KaoliniteAl2(Si2O5)(OH)4
O CalciteCaCO3
O MuscoviteKAl2(AlSi3O10)(OH)2
O MicroclineK(AlSi3O8)
O AlbiteNa(AlSi3O8)
O Garnet GroupX3Z2(SiO4)3
O Actinolite☐{Ca2}{Mg4.5-2.5Fe0.5-2.5}(Si8O22)(OH)2
O Goethiteα-Fe3+O(OH)
O Quartz (var: Rose Quartz)SiO2
O AlmandineFe32+Al2(SiO4)3
O Stilbite-CaNaCa4[Al9Si27O72] · nH2O
O FluorapatiteCa5(PO4)3F
O AnniteKFe32+(AlSi3O10)(OH)2
O StauroliteFe22+Al9Si4O23(OH)
FFluorine
F TopazAl2(SiO4)(F,OH)2
F FluorapatiteCa5(PO4)3F
F FluoriteCaF2
NaSodium
Na SchorlNa(Fe32+)Al6(Si6O18)(BO3)3(OH)3(OH)
Na AlbiteNa(AlSi3O8)
Na Stilbite-CaNaCa4[Al9Si27O72] · nH2O
MgMagnesium
Mg Tremolite☐{Ca2}{Mg5}(Si8O22)(OH)2
Mg ClinochloreMg5Al(AlSi3O10)(OH)8
Mg Actinolite☐{Ca2}{Mg4.5-2.5Fe0.5-2.5}(Si8O22)(OH)2
AlAluminium
Al SillimaniteAl2(SiO4)O
Al BerylBe3Al2(Si6O18)
Al CorundumAl2O3
Al KyaniteAl2(SiO4)O
Al Muscovite (var: Fuchsite)K(Al,Cr)3Si3O10(OH)2
Al SchorlNa(Fe32+)Al6(Si6O18)(BO3)3(OH)3(OH)
Al ClinochloreMg5Al(AlSi3O10)(OH)8
Al PrehniteCa2Al2Si3O10(OH)2
Al TopazAl2(SiO4)(F,OH)2
Al KaoliniteAl2(Si2O5)(OH)4
Al MuscoviteKAl2(AlSi3O10)(OH)2
Al MicroclineK(AlSi3O8)
Al AlbiteNa(AlSi3O8)
Al AlmandineFe32+Al2(SiO4)3
Al Stilbite-CaNaCa4[Al9Si27O72] · nH2O
Al AnniteKFe32+(AlSi3O10)(OH)2
Al StauroliteFe22+Al9Si4O23(OH)
SiSilicon
Si QuartzSiO2
Si Quartz (var: Milky Quartz)SiO2
Si Quartz (var: Amethyst)SiO2
Si SillimaniteAl2(SiO4)O
Si Quartz (var: Smoky Quartz)SiO2
Si Allanite Group{A12+REE3+}{M23+M32+}(Si2O7)(SiO4)O(OH)
Si BerylBe3Al2(Si6O18)
Si TitaniteCaTi(SiO4)O
Si KyaniteAl2(SiO4)O
Si Muscovite (var: Fuchsite)K(Al,Cr)3Si3O10(OH)2
Si SchorlNa(Fe32+)Al6(Si6O18)(BO3)3(OH)3(OH)
Si Tremolite☐{Ca2}{Mg5}(Si8O22)(OH)2
Si ClinochloreMg5Al(AlSi3O10)(OH)8
Si PrehniteCa2Al2Si3O10(OH)2
Si TopazAl2(SiO4)(F,OH)2
Si KaoliniteAl2(Si2O5)(OH)4
Si MuscoviteKAl2(AlSi3O10)(OH)2
Si MicroclineK(AlSi3O8)
Si AlbiteNa(AlSi3O8)
Si Garnet GroupX3Z2(SiO4)3
Si Actinolite☐{Ca2}{Mg4.5-2.5Fe0.5-2.5}(Si8O22)(OH)2
Si Quartz (var: Rose Quartz)SiO2
Si AlmandineFe32+Al2(SiO4)3
Si Stilbite-CaNaCa4[Al9Si27O72] · nH2O
Si AnniteKFe32+(AlSi3O10)(OH)2
Si StauroliteFe22+Al9Si4O23(OH)
PPhosphorus
P FluorapatiteCa5(PO4)3F
SSulfur
S PyrrhotiteFe1-xS
S PyriteFeS2
KPotassium
K Muscovite (var: Fuchsite)K(Al,Cr)3Si3O10(OH)2
K MuscoviteKAl2(AlSi3O10)(OH)2
K MicroclineK(AlSi3O8)
K AnniteKFe32+(AlSi3O10)(OH)2
CaCalcium
Ca TitaniteCaTi(SiO4)O
Ca Calcite (var: Ferroan Calcite)(Ca,Fe)CO3
Ca Tremolite☐{Ca2}{Mg5}(Si8O22)(OH)2
Ca PrehniteCa2Al2Si3O10(OH)2
Ca CalciteCaCO3
Ca Actinolite☐{Ca2}{Mg4.5-2.5Fe0.5-2.5}(Si8O22)(OH)2
Ca Stilbite-CaNaCa4[Al9Si27O72] · nH2O
Ca FluorapatiteCa5(PO4)3F
Ca FluoriteCaF2
TiTitanium
Ti TitaniteCaTi(SiO4)O
Ti RutileTiO2
CrChromium
Cr Muscovite (var: Fuchsite)K(Al,Cr)3Si3O10(OH)2
FeIron
Fe MagnetiteFe2+Fe23+O4
Fe PyrrhotiteFe1-xS
Fe Calcite (var: Ferroan Calcite)(Ca,Fe)CO3
Fe HematiteFe2O3
Fe SchorlNa(Fe32+)Al6(Si6O18)(BO3)3(OH)3(OH)
Fe Limonite(Fe,O,OH,H2O)
Fe Actinolite☐{Ca2}{Mg4.5-2.5Fe0.5-2.5}(Si8O22)(OH)2
Fe PyriteFeS2
Fe Goethiteα-Fe3+O(OH)
Fe AlmandineFe32+Al2(SiO4)3
Fe AnniteKFe32+(AlSi3O10)(OH)2
Fe StauroliteFe22+Al9Si4O23(OH)
BiBismuth
Bi Bismutite(BiO)2CO3

Other Databases

Wikipedia:https://en.wikipedia.org/wiki/Windham_County,_Connecticut
Wikidata ID:Q54251
GeoNames ID:4845904

Localities in this Region

Other Regions, Features and Areas that Intersect

North America PlateTectonic Plate

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