ALMOST THERE!. Help us with a final push needed to keep mindat.org running. Click here to help.
Catawiki are hosting a mindat.org benefit auction. All proceeds to mindat.org! BID NOW
Log InRegister
Home PageAbout MindatThe Mindat ManualHistory of MindatCopyright StatusWho We AreContact UsAdvertise on Mindat
Donate to MindatCorporate SponsorshipSponsor a PageSponsored PagesMindat AdvertisersAdvertise on Mindat
Learning CenterWhat is a mineral?The most common minerals on earthInformation for EducatorsMindat Articles
Minerals by PropertiesMinerals by ChemistryAdvanced Locality SearchRandom MineralRandom LocalitySearch by minIDLocalities Near MeSearch ArticlesSearch GlossaryMore Search Options
Search For:
Mineral Name:
Locality Name:
Keyword(s):
 
The Mindat ManualAdd a New PhotoRate PhotosLocality Edit ReportCoordinate Completion ReportAdd Glossary Item
Mining CompaniesStatisticsThe ElementsUsersBooks & MagazinesMineral MuseumsMineral Shows & EventsThe Mindat DirectoryDevice Settings
Photo SearchPhoto GalleriesNew Photos TodayNew Photos YesterdayMembers' Photo GalleriesPast Photo of the Day Gallery

Dexter Quarry (Dexter Lime Quarry), Lime Rock, Lincoln, Providence Co., Rhode Island, USA

This page is currently not sponsored. Click here to sponsor this page.
Key
Lock Map
Latitude & Longitude (WGS84): 41° 55' 8'' North , 71° 25' 59'' West
Latitude & Longitude (decimal): 41.91898,-71.43330
GeoHash:G#: drmnqrpge
Locality type:Quarry
Köppen climate type:Cfa : Humid subtropical climate


Ref.: Bowen(1822); Rocks & Min.: 9:107, 12:52; 17:51; 20:463-464 & 61:253-268; Miller, C. E. (1971) Rhode Island Minerals and Their Locations, O. D. Hermes, Ed., University of Rhode Island, Kingston. This limestone quarry was started about 1640 and is the earliest known mining in the "colonies." Closed in 1943. Workings were 800 feet long, 300 feet wide and 120 feet deep (or high at the face).

Select Mineral List Type

Standard Detailed Strunz Dana Chemical Elements

Commodity List

This is a list of exploitable or exploited mineral commodities recorded at this locality.


Mineral List


31 valid minerals.

Detailed Mineral List:

Actinolite
Formula: ☐{Ca2}{Mg4.5-2.5Fe0.5-2.5}(Si8O22)(OH)2
Reference: No reference listed
Anatase
Formula: TiO2
Reference: Miller, C. E. (1971) Rhode Island Minerals and Their Locations, O. D. Hermes, Ed., University of Rhode Island, Kingston
Ankerite
Formula: Ca(Fe2+,Mg)(CO3)2
Reference: Miller, C. E. (1971) Rhode Island Minerals and Their Locations, O. D. Hermes, Ed., University of Rhode Island, Kingston
Antigorite
Formula: Mg3(Si2O5)(OH)4
Reference: Miller, C. E. (1971) Rhode Island Minerals and Their Locations, O. D. Hermes, Ed., University of Rhode Island, Kingston
Antigorite var: Bowenite
Formula: Mg3(Si2O5)(OH)4
Reference: Miller, C. E. (1971) Rhode Island Minerals and Their Locations, O. D. Hermes, Ed., University of Rhode Island, Kingston; Rocks & Minerals (1986) 61:264-275; Rocks & Minerals (1986): 61: 286-289
Azurite
Formula: Cu3(CO3)2(OH)2
Reference: Miller, C. E. (1971) Rhode Island Minerals and Their Locations, O. D. Hermes, Ed., University of Rhode Island, Kingston; Rocks & Min.: 20:463-464.
Birnessite ?
Formula: (Na,Ca)0.5(Mn4+,Mn3+)2O4 · 1.5H2O
Reference: Museum of Natural History & Planetarium, Roger Williams Park collection
Calcite
Formula: CaCO3
Reference: Miller, C. E. (1971) Rhode Island Minerals and Their Locations, O. D. Hermes, Ed., University of Rhode Island, Kingston; Rocks & Min.: 17:51; 20:463-464.; Rocks & Minerals (1986) 61:264-275; Rocks & Minerals (1986): 61: 286-289
Clinochlore
Formula: Mg5Al(AlSi3O10)(OH)8
Reference: No reference listed
Dolomite
Formula: CaMg(CO3)2
Reference: Miller, C. E. (1971) Rhode Island Minerals and Their Locations, O. D. Hermes, Ed., University of Rhode Island, Kingston; Rocks & Min.: 17:51; 20:463-464.
Dravite
Formula: Na(Mg3)Al6(Si6O18)(BO3)3(OH)3(OH)
Reference: No reference listed
Epidote
Formula: {Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
Reference: No reference listed
Galena
Formula: PbS
Reference: No reference listed
Goethite
Formula: α-Fe3+O(OH)
Reference: MNH@RWP Collection
Graphite
Formula: C
Reference: Miller, C. E. (1971) Rhode Island Minerals and Their Locations, O. D. Hermes, Ed., University of Rhode Island, Kingston; Rocks & Min.: 17:51; 20:463-464.
Kaolinite
Formula: Al2(Si2O5)(OH)4
Reference: Miller, C. E. (1971) Rhode Island Minerals and Their Locations, O. D. Hermes, Ed., University of Rhode Island, Kingston
'K Feldspar'
Reference: Miller, C. E. (1971) Rhode Island Minerals and Their Locations, O. D. Hermes, Ed., University of Rhode Island, Kingston
'K Feldspar var: Adularia'
Formula: KAlSi3O8
Reference: Miller, C. E. (1971) Rhode Island Minerals and Their Locations, O. D. Hermes, Ed., University of Rhode Island, Kingston
'commodity:Limestone'
Reference: From USGS MRDS database
'Limonite'
Formula: (Fe,O,OH,H2O)
Reference: Rocks & Minerals (1986): 61: 286-289
Magnesio-hornblende
Formula: ☐{Ca2}{Mg4Al}(AlSi7O22)(OH)2
Reference: Miller, C. E. (1971) Rhode Island Minerals and Their Locations, O. D. Hermes, Ed., University of Rhode Island, Kingston
Magnetite
Formula: Fe2+Fe3+2O4
Reference: Miller, C. E. (1971) Rhode Island Minerals and Their Locations, O. D. Hermes, Ed., University of Rhode Island, Kingston
Malachite
Formula: Cu2(CO3)(OH)2
Reference: Miller, C. E. (1971) Rhode Island Minerals and Their Locations, O. D. Hermes, Ed., University of Rhode Island, Kingston
Muscovite
Formula: KAl2(AlSi3O10)(OH)2
Reference: Miller, C. E. (1971) Rhode Island Minerals and Their Locations, O. D. Hermes, Ed., University of Rhode Island, Kingston
Muscovite var: Sericite
Formula: KAl2(AlSi3O10)(OH)2
Reference: Miller, C. E. (1971) Rhode Island Minerals and Their Locations, O. D. Hermes, Ed., University of Rhode Island, Kingston; Rocks & Minerals (1986) 61:264-275; Rocks & Minerals (1986): 61: 286-289
Orthoclase
Formula: K(AlSi3O8)
Reference: Miller, C. E. (1971) Rhode Island Minerals and Their Locations, O. D. Hermes, Ed., University of Rhode Island, Kingston
Pyrite
Formula: FeS2
Reference: No reference listed
Quartz
Formula: SiO2
Reference: Miller, C. E. (1971) Rhode Island Minerals and Their Locations, O. D. Hermes, Ed., University of Rhode Island, Kingston; Rocks & Min.: 17:51; 20:463-464.; Rocks & Minerals (1986) 61:264-275; Rocks & Minerals (1986): 61: 286-289
Quartz var: Smoky Quartz
Formula: SiO2
Reference: Miller, C. E. (1971) Rhode Island Minerals and Their Locations, O. D. Hermes, Ed., University of Rhode Island, Kingston
Rhodochrosite
Formula: MnCO3
Reference: No reference listed
Rhodonite
Formula: Mn2+SiO3
Reference: Miller, C. E. (1971) Rhode Island Minerals and Their Locations, O. D. Hermes, Ed., University of Rhode Island, Kingston
Rutile
Formula: TiO2
Reference: Miller, C. E. (1971) Rhode Island Minerals and Their Locations, O. D. Hermes, Ed., University of Rhode Island, Kingston
Scolecite
Formula: CaAl2Si3O10 · 3H2O
Reference: Miller, C. E. (1971) Rhode Island Minerals and Their Locations, O. D. Hermes, Ed., University of Rhode Island, Kingston; Rocks & Minerals (1986): 61: 286-289
Siderite
Formula: FeCO3
Reference: Miller, C. E. (1971) Rhode Island Minerals and Their Locations, O. D. Hermes, Ed., University of Rhode Island, Kingston
Sphalerite
Formula: ZnS
Reference: Museum of Natural History and Planetarium, Roger Williams Park collection
Talc
Formula: Mg3Si4O10(OH)2
Reference: Miller, C. E. (1971) Rhode Island Minerals and Their Locations, O. D. Hermes, Ed., University of Rhode Island, Kingston; Rocks & Min.: 20:463-464.
Titanite
Formula: CaTi(SiO4)O
Reference: Miller, C. E. (1971) Rhode Island Minerals and Their Locations, O. D. Hermes, Ed., University of Rhode Island, Kingston
Tremolite
Formula: ☐{Ca2}{Mg5}(Si8O22)(OH)2
Reference: No reference listed

List of minerals arranged by Strunz 10th Edition classification

Group 1 - Elements
Graphite1.CB.05aC
Group 2 - Sulphides and Sulfosalts
Galena2.CD.10PbS
Pyrite2.EB.05aFeS2
Sphalerite2.CB.05aZnS
Group 4 - Oxides and Hydroxides
'Anatase'4.DD.05TiO2
'Birnessite' ?4.FL.45(Na,Ca)0.5(Mn4+,Mn3+)2O4 · 1.5H2O
Goethite4.00.α-Fe3+O(OH)
Magnetite4.BB.05Fe2+Fe3+2O4
Quartz4.DA.05SiO2
var: Smoky Quartz4.DA.05SiO2
Rutile4.DB.05TiO2
Group 5 - Nitrates and Carbonates
'Ankerite'5.AB.10Ca(Fe2+,Mg)(CO3)2
'Azurite'5.BA.05Cu3(CO3)2(OH)2
Calcite5.AB.05CaCO3
Dolomite5.AB.10CaMg(CO3)2
Malachite5.BA.10Cu2(CO3)(OH)2
Rhodochrosite5.AB.05MnCO3
Siderite5.AB.05FeCO3
Group 9 - Silicates
'Actinolite'9.DE.10☐{Ca2}{Mg4.5-2.5Fe0.5-2.5}(Si8O22)(OH)2
'Antigorite'9.ED.15Mg3(Si2O5)(OH)4
var: Bowenite9.ED.15Mg3(Si2O5)(OH)4
Clinochlore9.EC.55Mg5Al(AlSi3O10)(OH)8
Dravite9.CK.05Na(Mg3)Al6(Si6O18)(BO3)3(OH)3(OH)
Epidote9.BG.05a{Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
Kaolinite9.ED.05Al2(Si2O5)(OH)4
Magnesio-hornblende9.DE.10☐{Ca2}{Mg4Al}(AlSi7O22)(OH)2
Muscovite9.EC.15KAl2(AlSi3O10)(OH)2
var: Sericite9.EC.15KAl2(AlSi3O10)(OH)2
Orthoclase9.FA.30K(AlSi3O8)
Rhodonite9.DK.05Mn2+SiO3
Scolecite9.GA.05CaAl2Si3O10 · 3H2O
Talc9.EC.05Mg3Si4O10(OH)2
Titanite9.AG.15CaTi(SiO4)O
Tremolite9.DE.10☐{Ca2}{Mg5}(Si8O22)(OH)2
Unclassified Minerals, Rocks, etc.
K Feldspar-
'var: Adularia'-KAlSi3O8
Limonite-(Fe,O,OH,H2O)

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
Galena2.8.1.1PbS
Sphalerite2.8.2.1ZnS
AmBnXp, with (m+n):p = 1:2
Pyrite2.12.1.1FeS2
Group 4 - SIMPLE OXIDES
AX2
Anatase4.4.4.1TiO2
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
(AB)2X3
Birnessite ?7.5.3.1(Na,Ca)0.5(Mn4+,Mn3+)2O4 · 1.5H2O
Group 14 - ANHYDROUS NORMAL CARBONATES
A(XO3)
Calcite14.1.1.1CaCO3
Rhodochrosite14.1.1.4MnCO3
Siderite14.1.1.3FeCO3
AB(XO3)2
Ankerite14.2.1.2Ca(Fe2+,Mg)(CO3)2
Dolomite14.2.1.1CaMg(CO3)2
Group 16a - ANHYDROUS CARBONATES CONTAINING HYDROXYL OR HALOGEN
Azurite16a.2.1.1Cu3(CO3)2(OH)2
Malachite16a.3.1.1Cu2(CO3)(OH)2
Group 52 - NESOSILICATES Insular SiO4 Groups and O,OH,F,H2O
Insular SiO4 Groups and O, OH, F, and H2O with cations in [6] and/or >[6] coordination
Titanite52.4.3.1CaTi(SiO4)O
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 61 - CYCLOSILICATES Six-Membered Rings
Six-Membered Rings with borate groups
Dravite61.3.1.9Na(Mg3)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=5
Rhodonite65.4.1.1Mn2+SiO3
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 1:1 layers
Antigorite71.1.2a.1Mg3(Si2O5)(OH)4
Sheets of 6-membered rings with 2:1 layers
Muscovite71.2.2a.1KAl2(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 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
Orthoclase76.1.1.1K(AlSi3O8)
Group 77 - TECTOSILICATES Zeolites
Zeolite group - True zeolites
Scolecite77.1.5.5CaAl2Si3O10 · 3H2O
Unclassified Minerals, Rocks, etc.
Actinolite-☐{Ca2}{Mg4.5-2.5Fe0.5-2.5}(Si8O22)(OH)2
Antigorite
var: Bowenite
-Mg3(Si2O5)(OH)4
'K Feldspar'-
'var: Adularia'-KAlSi3O8
Kaolinite-Al2(Si2O5)(OH)4
'Limonite'-(Fe,O,OH,H2O)
Magnesio-hornblende-☐{Ca2}{Mg4Al}(AlSi7O22)(OH)2
Muscovite
var: Sericite
-KAl2(AlSi3O10)(OH)2
Quartz
var: Smoky Quartz
-SiO2

List of minerals for each chemical element

HHydrogen
H Actinolite☐{Ca2}{Mg4.5-2.5Fe0.5-2.5}(Si8O22)(OH)2
H AntigoriteMg3(Si2O5)(OH)4
H AzuriteCu3(CO3)2(OH)2
H Birnessite(Na,Ca)0.5(Mn4+,Mn3+)2O4 · 1.5H2O
H Antigorite (var: Bowenite)Mg3(Si2O5)(OH)4
H ClinochloreMg5Al(AlSi3O10)(OH)8
H DraviteNa(Mg3)Al6(Si6O18)(BO3)3(OH)3(OH)
H Epidote{Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
H Goethiteα-Fe3+O(OH)
H KaoliniteAl2(Si2O5)(OH)4
H Limonite(Fe,O,OH,H2O)
H Magnesio-hornblende☐{Ca2}{Mg4Al}(AlSi7O22)(OH)2
H MalachiteCu2(CO3)(OH)2
H MuscoviteKAl2(AlSi3O10)(OH)2
H ScoleciteCaAl2Si3O10 · 3H2O
H Muscovite (var: Sericite)KAl2(AlSi3O10)(OH)2
H TalcMg3Si4O10(OH)2
H Tremolite☐{Ca2}{Mg5}(Si8O22)(OH)2
BBoron
B DraviteNa(Mg3)Al6(Si6O18)(BO3)3(OH)3(OH)
CCarbon
C AnkeriteCa(Fe2+,Mg)(CO3)2
C AzuriteCu3(CO3)2(OH)2
C CalciteCaCO3
C DolomiteCaMg(CO3)2
C GraphiteC
C MalachiteCu2(CO3)(OH)2
C RhodochrositeMnCO3
C SideriteFeCO3
OOxygen
O Actinolite☐{Ca2}{Mg4.5-2.5Fe0.5-2.5}(Si8O22)(OH)2
O K Feldspar (var: Adularia)KAlSi3O8
O AnataseTiO2
O AnkeriteCa(Fe2+,Mg)(CO3)2
O AntigoriteMg3(Si2O5)(OH)4
O AzuriteCu3(CO3)2(OH)2
O Birnessite(Na,Ca)0.5(Mn4+,Mn3+)2O4 · 1.5H2O
O Antigorite (var: Bowenite)Mg3(Si2O5)(OH)4
O CalciteCaCO3
O ClinochloreMg5Al(AlSi3O10)(OH)8
O DolomiteCaMg(CO3)2
O DraviteNa(Mg3)Al6(Si6O18)(BO3)3(OH)3(OH)
O Epidote{Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
O Goethiteα-Fe3+O(OH)
O KaoliniteAl2(Si2O5)(OH)4
O Limonite(Fe,O,OH,H2O)
O Magnesio-hornblende☐{Ca2}{Mg4Al}(AlSi7O22)(OH)2
O MagnetiteFe2+Fe23+O4
O MalachiteCu2(CO3)(OH)2
O MuscoviteKAl2(AlSi3O10)(OH)2
O OrthoclaseK(AlSi3O8)
O QuartzSiO2
O RhodochrositeMnCO3
O RhodoniteMn2+SiO3
O RutileTiO2
O ScoleciteCaAl2Si3O10 · 3H2O
O Muscovite (var: Sericite)KAl2(AlSi3O10)(OH)2
O SideriteFeCO3
O Quartz (var: Smoky Quartz)SiO2
O TalcMg3Si4O10(OH)2
O TitaniteCaTi(SiO4)O
O Tremolite☐{Ca2}{Mg5}(Si8O22)(OH)2
NaSodium
Na Birnessite(Na,Ca)0.5(Mn4+,Mn3+)2O4 · 1.5H2O
Na DraviteNa(Mg3)Al6(Si6O18)(BO3)3(OH)3(OH)
MgMagnesium
Mg Actinolite☐{Ca2}{Mg4.5-2.5Fe0.5-2.5}(Si8O22)(OH)2
Mg AnkeriteCa(Fe2+,Mg)(CO3)2
Mg AntigoriteMg3(Si2O5)(OH)4
Mg Antigorite (var: Bowenite)Mg3(Si2O5)(OH)4
Mg ClinochloreMg5Al(AlSi3O10)(OH)8
Mg DolomiteCaMg(CO3)2
Mg DraviteNa(Mg3)Al6(Si6O18)(BO3)3(OH)3(OH)
Mg Magnesio-hornblende☐{Ca2}{Mg4Al}(AlSi7O22)(OH)2
Mg TalcMg3Si4O10(OH)2
Mg Tremolite☐{Ca2}{Mg5}(Si8O22)(OH)2
AlAluminium
Al K Feldspar (var: Adularia)KAlSi3O8
Al ClinochloreMg5Al(AlSi3O10)(OH)8
Al DraviteNa(Mg3)Al6(Si6O18)(BO3)3(OH)3(OH)
Al Epidote{Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
Al KaoliniteAl2(Si2O5)(OH)4
Al Magnesio-hornblende☐{Ca2}{Mg4Al}(AlSi7O22)(OH)2
Al MuscoviteKAl2(AlSi3O10)(OH)2
Al OrthoclaseK(AlSi3O8)
Al ScoleciteCaAl2Si3O10 · 3H2O
Al Muscovite (var: Sericite)KAl2(AlSi3O10)(OH)2
SiSilicon
Si Actinolite☐{Ca2}{Mg4.5-2.5Fe0.5-2.5}(Si8O22)(OH)2
Si K Feldspar (var: Adularia)KAlSi3O8
Si AntigoriteMg3(Si2O5)(OH)4
Si Antigorite (var: Bowenite)Mg3(Si2O5)(OH)4
Si ClinochloreMg5Al(AlSi3O10)(OH)8
Si DraviteNa(Mg3)Al6(Si6O18)(BO3)3(OH)3(OH)
Si Epidote{Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
Si KaoliniteAl2(Si2O5)(OH)4
Si Magnesio-hornblende☐{Ca2}{Mg4Al}(AlSi7O22)(OH)2
Si MuscoviteKAl2(AlSi3O10)(OH)2
Si OrthoclaseK(AlSi3O8)
Si QuartzSiO2
Si RhodoniteMn2+SiO3
Si ScoleciteCaAl2Si3O10 · 3H2O
Si Muscovite (var: Sericite)KAl2(AlSi3O10)(OH)2
Si Quartz (var: Smoky Quartz)SiO2
Si TalcMg3Si4O10(OH)2
Si TitaniteCaTi(SiO4)O
Si Tremolite☐{Ca2}{Mg5}(Si8O22)(OH)2
SSulfur
S GalenaPbS
S PyriteFeS2
S SphaleriteZnS
KPotassium
K K Feldspar (var: Adularia)KAlSi3O8
K MuscoviteKAl2(AlSi3O10)(OH)2
K OrthoclaseK(AlSi3O8)
K Muscovite (var: Sericite)KAl2(AlSi3O10)(OH)2
CaCalcium
Ca Actinolite☐{Ca2}{Mg4.5-2.5Fe0.5-2.5}(Si8O22)(OH)2
Ca AnkeriteCa(Fe2+,Mg)(CO3)2
Ca Birnessite(Na,Ca)0.5(Mn4+,Mn3+)2O4 · 1.5H2O
Ca CalciteCaCO3
Ca DolomiteCaMg(CO3)2
Ca Epidote{Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
Ca Magnesio-hornblende☐{Ca2}{Mg4Al}(AlSi7O22)(OH)2
Ca ScoleciteCaAl2Si3O10 · 3H2O
Ca TitaniteCaTi(SiO4)O
Ca Tremolite☐{Ca2}{Mg5}(Si8O22)(OH)2
TiTitanium
Ti AnataseTiO2
Ti RutileTiO2
Ti TitaniteCaTi(SiO4)O
MnManganese
Mn Birnessite(Na,Ca)0.5(Mn4+,Mn3+)2O4 · 1.5H2O
Mn RhodochrositeMnCO3
Mn RhodoniteMn2+SiO3
FeIron
Fe Actinolite☐{Ca2}{Mg4.5-2.5Fe0.5-2.5}(Si8O22)(OH)2
Fe AnkeriteCa(Fe2+,Mg)(CO3)2
Fe Epidote{Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
Fe Goethiteα-Fe3+O(OH)
Fe Limonite(Fe,O,OH,H2O)
Fe MagnetiteFe2+Fe23+O4
Fe PyriteFeS2
Fe SideriteFeCO3
CuCopper
Cu AzuriteCu3(CO3)2(OH)2
Cu MalachiteCu2(CO3)(OH)2
ZnZinc
Zn SphaleriteZnS
PbLead
Pb GalenaPbS

Regional Geology

This geological map and associated information on rock units at or nearby to the coordinates given for this locality is based on relatively small scale geological maps provided by various national Geological Surveys. This does not necessarily represent the complete geology at this locality but it gives a background for the region in which it is found.

Click on geological units on the map for more information. Click here to view full-screen map on Macrostrat.org

Pennsylvanian
298.9 - 323.2 Ma



ID: 3184341
Paleozoic sedimentary rocks

Age: Pennsylvanian (298.9 - 323.2 Ma)

Comments: Narragansett And Boston Basins

Lithology: Sedimentary rocks

Reference: Chorlton, L.B. Generalized geology of the world: bedrock domains and major faults in GIS format: a small-scale world geology map with an extended geological attribute database. doi: 10.4095/223767. Geological Survey of Canada, Open File 5529. [154]

Neoproterozoic
541 - 1000 Ma



ID: 2802740
Blackstone Group - greenstone, amphibolite, serpentinite

Age: Neoproterozoic (541 - 1000 Ma)

Stratigraphic Name: Blackstone Group

Description: Dark-green, massive to foliated metamorphosed gabbroic and basaltic rock interlayered with epiclastic rock; local pillow-structures preserved. Consists primarily of epidote, actinolite, chlorite, and plagioclase. Includes rock mapped formerly as Hunting Hill Greenstone.

Comments: Part of Esmond-Dedham Subterrane (West Bay Area) Original map source: Hermes, O.D., Gromet, L.P., Murray, D.P., and Hamidzada, N.A., 1994, Bedrock Geology of Rhode Island; s44gbr95, Geological Survey of Rhode Island, scale 1:100,000.

Lithology: Major:{greenstone,amphibolite,serpentinite}

Reference: Horton, J.D., C.A. San Juan, and D.B. Stoeser. The State Geologic Map Compilation (SGMC) geodatabase of the conterminous United States. doi: 10.3133/ds1052. U.S. Geological Survey Data Series 1052. [133]

Data and map coding provided by Macrostrat.org, used under Creative Commons Attribution 4.0 License


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.
Mineral and/or Locality  
Mindat.org is an outreach project of the Hudson Institute of Mineralogy, a 501(c)(3) not-for-profit organization.
Copyright © mindat.org and the Hudson Institute of Mineralogy 1993-2018, except where stated. Mindat.org relies on the contributions of thousands of members and supporters.
Privacy Policy - Terms & Conditions - Contact Us Current server date and time: December 11, 2018 20:08:44 Page generated: November 22, 2018 04:10:28
Go to top of page