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St Thomas, U.S. Virgin Islands, USAi
Regional Level Types
St ThomasCounty
U.S. Virgin IslandsUnincorporated and Organized Territory
USACountry

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Key
Lock Map
Locality type:
Other Languages:
French:
Saint Thomas, Îles Vierges des États-Unis, États-Unis
German:
Saint Thomas, Amerikanische Jungferninseln, Vereinigte Staaten
Italian:
Saint Thomas, Isole Vergini americane, Stati Uniti d'America
Russian:
Сент-Томас, Виргинские Острова, Соединённые Штаты Америки
Simplified Chinese:
聖托馬斯島, 美屬維爾京群島, 美国
Spanish:
Saint Thomas, Islas Vírgenes de los Estados Unidos, Estados Unidos
Arabic:
سانت توماس , جزر العذراء الأمريكية, الولايات المتحدة
Asturian:
Santu Tomás, Islles Vírxenes Americanes, Estaos Xuníos d'América
Azeri:
Sen-Tomas, ABŞ Vircin adaları, Amerika Birləşmiş Ştatları
Belarusian:
Сент-Томас, Амерыканскія Віргінскія астравы, Злучаныя Штаты Амерыкі
Breton:
Enez Saint Thomas, Inizi Gwerc'h ar Stadoù-Unanet, Stadoù-Unanet Amerika
Catalan:
Illa de Saint Thomas, Illes Verges Nord-americanes, Estats Units d’Amèrica
Cebuano:
Saint Thomas
Czech:
Svatý Tomáš, Americké Panenské ostrovy, Spojené státy americké
Danish:
Sankt Thomas, Amerikanske Jomfruøer, USA
Dutch:
Saint Thomas, Amerikaanse Maagdeneilanden, Verenigde Staten
Esperanto:
Sankta Tomaso, Usonaj Virgulinsuloj
Farsi/Persian:
سنت توماس، جزایر ویرجین ایالات متحده, جزایر ویرجین ایالات متحده آمریکا, ایالات متحده آمریکا
Finnish:
Saint Thomas, Yhdysvaltain Neitsytsaaret, Yhdysvallat
Galician:
San Tomé, Illas Virxes Estadounidenses, Estados Unidos de América
Greek:
Άγιος Θωμάς, Αμερικανικές Παρθένοι Νήσοι, Ηνωμένες Πολιτείες Αμερικής
Hebrew:
סנט תומאס, איי הבתולה של ארצות הברית, ארצות הברית
Japanese:
セント・トーマス島, アメリカ領ヴァージン諸島, アメリカ合衆国
Korean:
세인트토머스섬, 미국령 버진아일랜드, 미국
Macedonian:
Сент Томас, Американски Девствени Острови, Соединети Американски Држави
Northern Frisian:
Saint Thomas, Amerikoonsk Jongfoomen Eilunen, Feriind Stoote foon Ameerika
Norwegian:
Saint Thomas, De amerikanske Jomfruøyer, USA
Norwegian (Nynorsk):
Saint Thomas, Dei amerikanske Jomfruøyane, USA
Polish:
Saint Thomas, Wyspy Dziewicze Stanów Zjednoczonych, Stany Zjednoczone
Portuguese:
São Tomás, Ilhas Virgens Americanas, Estados Unidos
Scots:
Saint Thomas, Unitit States Virgin Islands
Serbian:
Сент Томас, Америчка Девичанска Острва, Сједињене Америчке Државе
Slovenian:
Saint Thomas, Deviški otoki Združenih držav, Združene države Amerike
Swahili:
Saint Thomas, Visiwa vya Virgin vya Marekani, Marekani
Swedish:
Saint Thomas, Amerikanska Jungfruöarna, USA
Traditional Chinese:
聖托馬斯島, 美屬處女羣島, 美國
Turkish:
Saint Thomas, Amerika Birleşik Devletleri Virjin Adaları, Amerika Birleşik Devletleri
Ukrainian:
Сент-Томас, Американські Віргінські Острови, Сполучені Штати Америки
Urdu:
سینٹ تھامس، امریکی جزائر ورجن, امریکی جزائر ورجن, ریاستہائے متحدہ امریکا


St. Thomas is one of three major islands of the US Virgin Islands.

The oldest rock unit of the northern Virgin Islands is the Lower Cretaceous Water Island Formation (10,000–15,000 feet plus), which consists of keratophyre flows and tuffs, spilite flows, and radiolarian tuffs.

Select Mineral List Type

Standard Detailed Strunz Dana Chemical Elements

Mineral List

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

15 valid minerals.

Detailed Mineral List:

Albite
Formula: Na(AlSi3O8)
Reference: Ref.: Alminas, Foord & Tucker (1994): "Geochemistry, Mineralogy & Geochronology of the US Virgin Islands", USGS Bull. 2057, 36 pp.
Anorthite
Formula: Ca(Al2Si2O8)
Reference: Thomas W. Donnelly (1962) Wairakite in West Indian Spilitic Rocks. American Mineralogist, 47, 794-802.
Anorthite var: Bytownite
Formula: (Ca,Na)[Al(Al,Si)Si2O8]
Reference: Thomas W. Donnelly (1962) Wairakite in West Indian Spilitic Rocks. American Mineralogist, 47, 794-802.
Anorthite var: Labradorite
Formula: (Ca,Na)[Al(Al,Si)Si2O8]
Reference: Thomas W. Donnelly (1962) Wairakite in West Indian Spilitic Rocks. American Mineralogist, 47, 794-802.
Augite
Formula: (CaxMgyFez)(Mgy1Fez1)Si2O6
Reference: Ref.: Alminas, Foord & Tucker (1994): "Geochemistry, Mineralogy & Geochronology of the US Virgin Islands", USGS Bull. 2057, 36 pp.
Calcite
Formula: CaCO3
Reference: Ref.: Alminas, Foord & Tucker (1994): "Geochemistry, Mineralogy & Geochronology of the US Virgin Islands", USGS Bull. 2057, 36 pp.
'Chlorite Group'
Reference: Ref.: Alminas, Foord & Tucker (1994): "Geochemistry, Mineralogy & Geochronology of the US Virgin Islands", USGS Bull. 2057, 36 pp.
Diopside
Formula: CaMgSi2O6
Reference: Ref.: Alminas, Foord & Tucker (1994): "Geochemistry, Mineralogy & Geochronology of the US Virgin Islands", USGS Bull. 2057, 36 pp.
'Electrum'
Formula: (Au, Ag)
Reference: Alminas, Henry V.; Foord, Eugene E.; Tucker, Robert E. (1994) Geochemistry, mineralogy, and geochronology of the U.S. Virgin Islands USGS Bulletin 2057 36p
Epidote
Formula: {Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
Reference: Ref.: Alminas, Foord & Tucker (1994): "Geochemistry, Mineralogy & Geochronology of the US Virgin Islands", USGS Bull. 2057, 36 pp.
'Eta-bronze'
Formula: Cu6Sn5
Reference: Alminas, Henry V.; Foord, Eugene E.; Tucker, Robert E. (1994) Geochemistry, mineralogy, and geochronology of the U.S. Virgin Islands USGS Bulletin 2057 36p
Gold
Formula: Au
Reference: Alminas, Henry V.; Foord, Eugene E.; Tucker, Robert E. (1994) Geochemistry, mineralogy, and geochronology of the U.S. Virgin Islands USGS Bulletin 2057 36p
Iodargyrite
Formula: AgI
Reference: Alminas, Henry V.; Foord, Eugene E.; Tucker, Robert E. (1994) Geochemistry, mineralogy, and geochronology of the U.S. Virgin Islands USGS Bulletin 2057 36p
'Limonite'
Formula: (Fe,O,OH,H2O)
Malachite
Formula: Cu2(CO3)(OH)2
Reference: Alminas, Henry V.; Foord, Eugene E.; Tucker, Robert E. (1994) Geochemistry, mineralogy, and geochronology of the U.S. Virgin Islands USGS Bulletin 2057 36p
Muscovite
Formula: KAl2(AlSi3O10)(OH)2
Reference: Thomas W. Donnelly (1962) Wairakite in West Indian Spilitic Rocks. American Mineralogist, 47, 794-802.
Prehnite
Formula: Ca2Al2Si3O10(OH)2
Reference: Ref.: Alminas, Foord & Tucker (1994): "Geochemistry, Mineralogy & Geochronology of the US Virgin Islands", USGS Bull. 2057, 36 pp.
'Pumpellyite'
Reference: Thomas W. Donnelly (1962) Wairakite in West Indian Spilitic Rocks. American Mineralogist, 47, 794-802.
Pyrite
Formula: FeS2
Reference: Am Min (1962) 47:794-802
Quartz
Formula: SiO2
Sulphur
Formula: S8
Reference: C. Stefano specimen
Wairakite
Formula: Ca(Al2Si4O12) · 2H2O
Reference: Am Min (1962) 47:794-802

List of minerals arranged by Strunz 10th Edition classification

Group 1 - Elements
'Electrum'1.AA.05(Au, Ag)
'Eta-bronze'1.AC.15Cu6Sn5
Gold1.AA.05Au
Sulphur1.CC.05S8
Group 2 - Sulphides and Sulfosalts
Pyrite2.EB.05aFeS2
Group 3 - Halides
Iodargyrite3.AA.10AgI
Group 4 - Oxides and Hydroxides
Quartz4.DA.05SiO2
Group 5 - Nitrates and Carbonates
Calcite5.AB.05CaCO3
Malachite5.BA.10Cu2(CO3)(OH)2
Group 9 - Silicates
Albite9.FA.35Na(AlSi3O8)
Anorthite9.FA.35Ca(Al2Si2O8)
var: Bytownite9.FA.35(Ca,Na)[Al(Al,Si)Si2O8]
var: Labradorite9.FA.35(Ca,Na)[Al(Al,Si)Si2O8]
Augite9.DA.15(CaxMgyFez)(Mgy1Fez1)Si2O6
Diopside9.DA.15CaMgSi2O6
Epidote9.BG.05a{Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
Muscovite9.EC.15KAl2(AlSi3O10)(OH)2
Prehnite9.DP.20Ca2Al2Si3O10(OH)2
Wairakite9.GB.05Ca(Al2Si4O12) · 2H2O
Unclassified Minerals, Rocks, etc.
'Chlorite Group'-
'Limonite'-(Fe,O,OH,H2O)
'Pumpellyite'-

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
Semi-metals and non-metals
Sulphur1.3.5.1S8
Group 2 - SULFIDES
AmBnXp, with (m+n):p = 1:2
Pyrite2.12.1.1FeS2
Group 9 - NORMAL HALIDES
AX
Iodargyrite9.1.5.1AgI
Group 14 - ANHYDROUS NORMAL CARBONATES
A(XO3)
Calcite14.1.1.1CaCO3
Group 16a - ANHYDROUS CARBONATES CONTAINING HYDROXYL OR HALOGEN
Malachite16a.3.1.1Cu2(CO3)(OH)2
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)
Epidote58.2.1a.7{Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(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 71 - PHYLLOSILICATES Sheets of Six-Membered Rings
Sheets of 6-membered rings with 2:1 layers
Muscovite71.2.2a.1KAl2(AlSi3O10)(OH)2
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)
Group 77 - TECTOSILICATES Zeolites
Zeolite group - True zeolites
Wairakite77.1.1.3Ca(Al2Si4O12) · 2H2O
Unclassified Minerals, Mixtures, etc.
Anorthite-Ca(Al2Si2O8)
var: Bytownite-(Ca,Na)[Al(Al,Si)Si2O8]
var: Labradorite-(Ca,Na)[Al(Al,Si)Si2O8]
'Chlorite Group'-
'Electrum'-(Au, Ag)
'Eta-bronze'-Cu6Sn5
'Limonite'-(Fe,O,OH,H2O)
'Pumpellyite'-

List of minerals for each chemical element

HHydrogen
H PrehniteCa2Al2Si3O10(OH)2
H Epidote{Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
H Limonite(Fe,O,OH,H2O)
H WairakiteCa(Al2Si4O12) · 2H2O
H MalachiteCu2(CO3)(OH)2
H MuscoviteKAl2(AlSi3O10)(OH)2
CCarbon
C CalciteCaCO3
C MalachiteCu2(CO3)(OH)2
OOxygen
O AlbiteNa(AlSi3O8)
O DiopsideCaMgSi2O6
O Augite(CaxMgyFez)(Mgy1Fez1)Si2O6
O CalciteCaCO3
O PrehniteCa2Al2Si3O10(OH)2
O Epidote{Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
O QuartzSiO2
O Limonite(Fe,O,OH,H2O)
O WairakiteCa(Al2Si4O12) · 2H2O
O MalachiteCu2(CO3)(OH)2
O MuscoviteKAl2(AlSi3O10)(OH)2
O Anorthite (var: Bytownite)(Ca,Na)[Al(Al,Si)Si2O8]
O Anorthite (var: Labradorite)(Ca,Na)[Al(Al,Si)Si2O8]
O AnorthiteCa(Al2Si2O8)
NaSodium
Na AlbiteNa(AlSi3O8)
Na Anorthite (var: Bytownite)(Ca,Na)[Al(Al,Si)Si2O8]
Na Anorthite (var: Labradorite)(Ca,Na)[Al(Al,Si)Si2O8]
MgMagnesium
Mg DiopsideCaMgSi2O6
Mg Augite(CaxMgyFez)(Mgy1Fez1)Si2O6
AlAluminium
Al AlbiteNa(AlSi3O8)
Al PrehniteCa2Al2Si3O10(OH)2
Al Epidote{Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
Al WairakiteCa(Al2Si4O12) · 2H2O
Al MuscoviteKAl2(AlSi3O10)(OH)2
Al Anorthite (var: Bytownite)(Ca,Na)[Al(Al,Si)Si2O8]
Al Anorthite (var: Labradorite)(Ca,Na)[Al(Al,Si)Si2O8]
Al AnorthiteCa(Al2Si2O8)
SiSilicon
Si AlbiteNa(AlSi3O8)
Si DiopsideCaMgSi2O6
Si Augite(CaxMgyFez)(Mgy1Fez1)Si2O6
Si PrehniteCa2Al2Si3O10(OH)2
Si Epidote{Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
Si QuartzSiO2
Si WairakiteCa(Al2Si4O12) · 2H2O
Si MuscoviteKAl2(AlSi3O10)(OH)2
Si Anorthite (var: Bytownite)(Ca,Na)[Al(Al,Si)Si2O8]
Si Anorthite (var: Labradorite)(Ca,Na)[Al(Al,Si)Si2O8]
Si AnorthiteCa(Al2Si2O8)
SSulfur
S SulphurS8
S PyriteFeS2
KPotassium
K MuscoviteKAl2(AlSi3O10)(OH)2
CaCalcium
Ca DiopsideCaMgSi2O6
Ca Augite(CaxMgyFez)(Mgy1Fez1)Si2O6
Ca CalciteCaCO3
Ca PrehniteCa2Al2Si3O10(OH)2
Ca Epidote{Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
Ca WairakiteCa(Al2Si4O12) · 2H2O
Ca Anorthite (var: Bytownite)(Ca,Na)[Al(Al,Si)Si2O8]
Ca Anorthite (var: Labradorite)(Ca,Na)[Al(Al,Si)Si2O8]
Ca AnorthiteCa(Al2Si2O8)
FeIron
Fe Augite(CaxMgyFez)(Mgy1Fez1)Si2O6
Fe Epidote{Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
Fe Limonite(Fe,O,OH,H2O)
Fe PyriteFeS2
CuCopper
Cu Eta-bronzeCu6Sn5
Cu MalachiteCu2(CO3)(OH)2
AgSilver
Ag Electrum(Au, Ag)
Ag IodargyriteAgI
SnTin
Sn Eta-bronzeCu6Sn5
IIodine
I IodargyriteAgI
AuGold
Au GoldAu
Au Electrum(Au, Ag)

References

Sort by

Year (asc) Year (desc) Author (A-Z) Author (Z-A)
Hess, H.H., Bowin, C.O., Donnelly, T.W., Whetten, J.T., Oxburgh, E.R. (1966) Caribbean Geological Investigations. Geological Society of America, Vol 98.

Other Databases

Wikipedia:https://en.wikipedia.org/wiki/Saint_Thomas,_U.S._Virgin_Islands
Wikidata ID:Q463937
GeoNames ID:4796548

External Links


Localities in this Region
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This page contains all mineral locality references listed on mindat.org. This does not claim to be a complete list. If you know of more minerals from this site, please register so you can add to our database. This locality information is for reference purposes only. You should never attempt to visit any sites listed in mindat.org without first ensuring that you have the permission of the land and/or mineral rights holders for access and that you are aware of all safety precautions necessary.
 
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