SUPPORT US. If mindat.org is important to you, click here to donate to our Fall 2019 fundraiser!
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 ArticlesThe ElementsBooks & Magazines
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 CompaniesStatisticsUsersMineral MuseumsMineral Shows & EventsThe Mindat DirectoryDevice Settings
Photo SearchPhoto GalleriesNew Photos TodayNew Photos YesterdayMembers' Photo GalleriesPast Photo of the Day GalleryMineral Photography

Ross Mine (Highland lode; John Ross Mine), Berne, Custer District, Custer Co., South Dakota, USAi
Regional Level Types
Ross Mine (Highland lode; John Ross Mine)Mine
Berne- not defined -
Custer DistrictMining District
Custer Co.County
South DakotaState
USACountry

This page is currently not sponsored. Click here to sponsor this page.
Key
Lock Map
Latitude & Longitude (WGS84):
43° 46' 0'' North , 103° 40' 41'' West
Latitude & Longitude (decimal):
Locality type:
Nearest Settlements:
PlacePopulationDistance
Custer1,952 (2017)6.4km
Pringle109 (2017)18.8km
Hill City995 (2017)20.2km
Keystone343 (2017)25.3km
Hill View Heights170 (2006)39.2km


A granite pegmatite located in the NE¼ sec. 30, T.3S., R.4E., near Berne, near Custer. A mine on the "Highland lode."

Mineralization is an oval, zoned pegmatite body concordant in quartz-mica schist.

Workings include a large open pit, an incline with raise, a tunnel, and small pits.

Regions containing this locality

North America PlateTectonic Plate

Select Mineral List Type

Standard Detailed Strunz Dana Chemical Elements

Mineral List


29 valid minerals. 2 erroneous literature entries.

Detailed Mineral List:

Albite
Formula: Na(AlSi3O8)
Reference: R&M 75:3 pp 156-169
'Allanite Group'
Formula: {A12+REE3+}{M3+2M32+}(Si2O7)(SiO4)O(OH)
Reference: R&M 75:3 pp 156-169
Alluaudite
Formula: (Na,Ca)Mn2+(Fe3+,Mn2+,Fe2+,Mg)2(PO4)3
Reference: R&M 75:3 pp 156-169
Amblygonite
Formula: LiAl(PO4)F
Reference: USGS Prof Paper 297F
Arsenopyrite
Formula: FeAsS
Reference: R&M 75:3 pp 156-169
Autunite
Formula: Ca(UO2)2(PO4)2 · 11H2O
Reference: R&M 75:3 pp 156-169
Beryl
Formula: Be3Al2(Si6O18)
Reference: R&M 75:3 pp 156-169; Meeves, H., et al (1966), Reconnaissance of beryllium-bearing pegmatite deposits in six western states, US Bur. Mines Info. Circ. 8298: 32 (Table A-1).
Beryl var: Heliodor
Formula: Be3Al2(Si6O18)
Reference: USGS Prof Paper 297F
Bismuth
Formula: Bi
Reference: R&M 75:3 pp 156-169
Cassiterite
Formula: SnO2
Reference: U.S. Geological Survey, 2005, Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia.
'Columbite-Tantalite'
Reference: R&M 75:3 pp 156-169; Meeves, H., et al (1966), Reconnaissance of beryllium-bearing pegmatite deposits in six western states, US Bur. Mines Info. Circ. 8298: 32 (Table A-1).; USGS Prof Paper 297F
'Davidite'
Reference: R&M 75:3 pp 156-169
Fluorapatite
Formula: Ca5(PO4)3F
Reference: R&M 75:3 pp 156-169
'Garnet Group'
Formula: X3Z2(SiO4)3
Reference: Rocks & Min.: 60: 113.
Graftonite
Formula: Fe2+Fe2+2(PO4)2
Reference: R&M 75:3 pp 156-169; USGS Prof Paper 297F
'Gummite'
Reference: R&M 75:3 pp 156-169; USGS Prof Paper 297F
Hureaulite
Formula: (Mn,Fe)5(PO4)2(HPO4)2 · 4H2O
Reference: R&M 75:3 pp 156-169
Lithiophilite
Formula: LiMn2+PO4
Description: Actual composition is Mn/Mn + Fe = 0.17
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, p. 333-336.
Löllingite
Formula: FeAs2
Reference: R&M 75:3 pp 156-169; USGS Prof Paper 297F
Microcline
Formula: K(AlSi3O8)
Reference: R&M 75:3 pp 156-169
Montebrasite
Formula: LiAl(PO4)(OH)
Reference: R&M 75:3 pp 156-169
Muscovite
Formula: KAl2(AlSi3O10)(OH)2
Reference: R&M 75:3 pp 156-169
Phosphosiderite
Formula: FePO4 · 2H2O
Reference: R&M 75:3 pp 156-169
Purpurite
Formula: (Mn3+,Fe3+)PO4
Description: Actual composition is Mn/Mn + Fe = 0.17
Reference: R&M 75:3 pp 156-169; 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, p. 333-336.
Pyrite
Formula: FeS2
Reference: R&M 75:3 pp 156-169
Pyrrhotite
Formula: Fe7S8
Reference: U.S. Geological Survey, 2005, Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia.
Quartz
Formula: SiO2
Reference: R&M 75:3 pp 156-169
Schorl
Formula: Na(Fe2+3)Al6(Si6O18)(BO3)3(OH)3(OH)
Reference: R&M 75:3 pp 156-169
Sicklerite
Formula: Li1-x(Mn3+xMn2+1-x)PO4
Reference: Rocks & Minerals: 75(3): 156-169.
Spessartine
Formula: Mn2+3Al2(SiO4)3
Reference: SDSMT Bull 18 Roberts and Rapp "Mineralogy of the Black Hills"
Torbernite
Formula: Cu(UO2)2(PO4)2 · 12H2O
Reference: R&M 75:3 pp 156-169
Triphylite
Formula: LiFe2+PO4
Description: Mn/Mn + Fe = 0.17
Reference: R&M 75:3 pp 156-169; 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, p. 333-336.
Triploidite ?
Formula: (Mn2+,Fe2+)2(PO4)(OH)
Description: The mineral is probably iron-rich and part of the wolfeite-zwieselite series.
Reference: R&M 75:3 pp 156-169
Uraninite
Formula: UO2
Reference: R&M 75:3 pp 156-169; USGS Prof Paper 297F
Uranophane
Formula: Ca(UO2)2(SiO3OH)2 · 5H2O
Reference: R&M 75:3 pp 156-169
Vivianite
Formula: Fe2+3(PO4)2 · 8H2O
Reference: R&M 75:3 pp 156-169
Zircon
Formula: Zr(SiO4)
Reference: R&M 75:3 pp 156-169

List of minerals arranged by Strunz 10th Edition classification

Group 1 - Elements
Bismuth1.CA.05Bi
Group 2 - Sulphides and Sulfosalts
Arsenopyrite2.EB.20FeAsS
Löllingite2.EB.15aFeAs2
Pyrite2.EB.05aFeS2
Pyrrhotite2.CC.10Fe7S8
Group 4 - Oxides and Hydroxides
Cassiterite4.DB.05SnO2
Quartz4.DA.05SiO2
Uraninite4.DL.05UO2
Group 8 - Phosphates, Arsenates and Vanadates
Alluaudite8.AC.10(Na,Ca)Mn2+(Fe3+,Mn2+,Fe2+,Mg)2(PO4)3
Amblygonite8.BB.05LiAl(PO4)F
Autunite8.EB.05Ca(UO2)2(PO4)2 · 11H2O
Fluorapatite8.BN.05Ca5(PO4)3F
Graftonite8.AB.20Fe2+Fe2+2(PO4)2
Hureaulite8.CB.10(Mn,Fe)5(PO4)2(HPO4)2 · 4H2O
Lithiophilite ?8.AB.10LiMn2+PO4
Montebrasite8.BB.05LiAl(PO4)(OH)
Phosphosiderite8.CD.05FePO4 · 2H2O
Purpurite ?8.AB.10(Mn3+,Fe3+)PO4
Sicklerite8.AB.10Li1-x(Mn3+xMn2+1-x)PO4
Torbernite8.EB.05Cu(UO2)2(PO4)2 · 12H2O
Triphylite8.AB.10LiFe2+PO4
Triploidite ?8.BB.15(Mn2+,Fe2+)2(PO4)(OH)
Vivianite8.CE.40Fe2+3(PO4)2 · 8H2O
Group 9 - Silicates
Albite9.FA.35Na(AlSi3O8)
Beryl9.CJ.05Be3Al2(Si6O18)
var: Heliodor9.CJ.05Be3Al2(Si6O18)
Microcline9.FA.30K(AlSi3O8)
Muscovite9.EC.15KAl2(AlSi3O10)(OH)2
Schorl9.CK.05Na(Fe2+3)Al6(Si6O18)(BO3)3(OH)3(OH)
Spessartine9.AD.25Mn2+3Al2(SiO4)3
Uranophane9.AK.15Ca(UO2)2(SiO3OH)2 · 5H2O
Zircon9.AD.30Zr(SiO4)
Unclassified Minerals, Rocks, etc.
'Allanite Group'-{A12+REE3+}{M3+2M32+}(Si2O7)(SiO4)O(OH)
'Columbite-Tantalite'-
'Davidite'-
'Garnet Group'-X3Z2(SiO4)3
'Gummite'-

List of minerals arranged by Dana 8th Edition classification

Group 1 - NATIVE ELEMENTS AND ALLOYS
Semi-metals and non-metals
Bismuth1.3.1.4Bi
Group 2 - SULFIDES
AmXp, with m:p = 1:1
Pyrrhotite2.8.10.1Fe7S8
AmBnXp, with (m+n):p = 1:2
Arsenopyrite2.12.4.1FeAsS
Löllingite2.12.2.9FeAs2
Pyrite2.12.1.1FeS2
Group 4 - SIMPLE OXIDES
AX2
Cassiterite4.4.1.5SnO2
Group 5 - OXIDES CONTAINING URANIUM OR THORIUM
AXO2·xH2O
Uraninite5.1.1.1UO2
Group 38 - ANHYDROUS NORMAL PHOSPHATES, ARSENATES, AND VANADATES
ABXO4
Lithiophilite ?38.1.1.2LiMn2+PO4
Sicklerite38.1.4.2Li1-x(Mn3+xMn2+1-x)PO4
Triphylite38.1.1.1LiFe2+PO4
(AB)5(XO4)3
Alluaudite38.2.3.6(Na,Ca)Mn2+(Fe3+,Mn2+,Fe2+,Mg)2(PO4)3
(AB)3(XO4)2
Graftonite38.3.3.1Fe2+Fe2+2(PO4)2
AXO4
Purpurite ?38.4.1.2(Mn3+,Fe3+)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
Torbernite40.2a.13.1Cu(UO2)2(PO4)2 · 12H2O
A3(XO4)2·xH2O
Vivianite40.3.6.1Fe2+3(PO4)2 · 8H2O
(AB)5(XO4)2·xH2O
Phosphosiderite40.4.3.2FePO4 · 2H2O
Group 41 - ANHYDROUS PHOSPHATES, ETC.CONTAINING HYDROXYL OR HALOGEN
(AB)2(XO4)Zq
Amblygonite41.5.8.1LiAl(PO4)F
Montebrasite41.5.8.2LiAl(PO4)(OH)
A2(XO4)Zq
Triploidite ?41.6.3.2(Mn2+,Fe2+)2(PO4)(OH)
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
Spessartine51.4.3a.3Mn2+3Al2(SiO4)3
Insular SiO4 Groups Only with cations in >[6] coordination
Zircon51.5.2.1Zr(SiO4)
Group 53 - NESOSILICATES Insular SiO4 Groups and Other Anions or Complex Cations
Insular SiO4 Groups and Other Anions of Complex Cations with (UO2)
Uranophane53.3.1.2Ca(UO2)2(SiO3OH)2 · 5H2O
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 71 - PHYLLOSILICATES Sheets of Six-Membered Rings
Sheets of 6-membered rings with 2:1 layers
Muscovite71.2.2a.1KAl2(AlSi3O10)(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)
Unclassified Minerals, Mixtures, etc.
'Allanite Group'-{A12+REE3+}{M3+2M32+}(Si2O7)(SiO4)O(OH)
Beryl
var: Heliodor
-Be3Al2(Si6O18)
'Columbite-Tantalite'-
'Davidite'-
'Garnet Group'-X3Z2(SiO4)3
'Gummite'-

List of minerals for each chemical element

HHydrogen
H Allanite Group{A12+REE3+}{M23+M32+}(Si2O7)(SiO4)O(OH)
H AutuniteCa(UO2)2(PO4)2 · 11H2O
H Hureaulite(Mn,Fe)5(PO4)2(HPO4)2 · 4H2O
H MontebrasiteLiAl(PO4)(OH)
H MuscoviteKAl2(AlSi3O10)(OH)2
H PhosphosideriteFePO4 · 2H2O
H SchorlNa(Fe32+)Al6(Si6O18)(BO3)3(OH)3(OH)
H TorberniteCu(UO2)2(PO4)2 · 12H2O
H UranophaneCa(UO2)2(SiO3OH)2 · 5H2O
H VivianiteFe32+(PO4)2 · 8H2O
H Triploidite(Mn2+,Fe2+)2(PO4)(OH)
LiLithium
Li MontebrasiteLiAl(PO4)(OH)
Li SickleriteLi1-x(Mnx3+Mn2+1-x)PO4
Li TriphyliteLiFe2+PO4
Li AmblygoniteLiAl(PO4)F
Li LithiophiliteLiMn2+PO4
BeBeryllium
Be BerylBe3Al2(Si6O18)
Be Beryl (var: Heliodor)Be3Al2(Si6O18)
BBoron
B SchorlNa(Fe32+)Al6(Si6O18)(BO3)3(OH)3(OH)
OOxygen
O Garnet GroupX3Z2(SiO4)3
O AlbiteNa(AlSi3O8)
O Allanite Group{A12+REE3+}{M23+M32+}(Si2O7)(SiO4)O(OH)
O Alluaudite(Na,Ca)Mn2+(Fe3+,Mn2+,Fe2+,Mg)2(PO4)3
O AutuniteCa(UO2)2(PO4)2 · 11H2O
O BerylBe3Al2(Si6O18)
O FluorapatiteCa5(PO4)3F
O GraftoniteFe2+Fe22+(PO4)2
O Hureaulite(Mn,Fe)5(PO4)2(HPO4)2 · 4H2O
O MicroclineK(AlSi3O8)
O MontebrasiteLiAl(PO4)(OH)
O MuscoviteKAl2(AlSi3O10)(OH)2
O PhosphosideriteFePO4 · 2H2O
O QuartzSiO2
O SchorlNa(Fe32+)Al6(Si6O18)(BO3)3(OH)3(OH)
O SickleriteLi1-x(Mnx3+Mn2+1-x)PO4
O TorberniteCu(UO2)2(PO4)2 · 12H2O
O TriphyliteLiFe2+PO4
O UraniniteUO2
O UranophaneCa(UO2)2(SiO3OH)2 · 5H2O
O VivianiteFe32+(PO4)2 · 8H2O
O ZirconZr(SiO4)
O CassiteriteSnO2
O SpessartineMn32+Al2(SiO4)3
O Beryl (var: Heliodor)Be3Al2(Si6O18)
O AmblygoniteLiAl(PO4)F
O Triploidite(Mn2+,Fe2+)2(PO4)(OH)
O LithiophiliteLiMn2+PO4
O Purpurite(Mn3+,Fe3+)PO4
FFluorine
F FluorapatiteCa5(PO4)3F
F AmblygoniteLiAl(PO4)F
NaSodium
Na AlbiteNa(AlSi3O8)
Na Alluaudite(Na,Ca)Mn2+(Fe3+,Mn2+,Fe2+,Mg)2(PO4)3
Na SchorlNa(Fe32+)Al6(Si6O18)(BO3)3(OH)3(OH)
MgMagnesium
Mg Alluaudite(Na,Ca)Mn2+(Fe3+,Mn2+,Fe2+,Mg)2(PO4)3
AlAluminium
Al AlbiteNa(AlSi3O8)
Al BerylBe3Al2(Si6O18)
Al MicroclineK(AlSi3O8)
Al MontebrasiteLiAl(PO4)(OH)
Al MuscoviteKAl2(AlSi3O10)(OH)2
Al SchorlNa(Fe32+)Al6(Si6O18)(BO3)3(OH)3(OH)
Al SpessartineMn32+Al2(SiO4)3
Al Beryl (var: Heliodor)Be3Al2(Si6O18)
Al AmblygoniteLiAl(PO4)F
SiSilicon
Si Garnet GroupX3Z2(SiO4)3
Si AlbiteNa(AlSi3O8)
Si Allanite Group{A12+REE3+}{M23+M32+}(Si2O7)(SiO4)O(OH)
Si BerylBe3Al2(Si6O18)
Si MicroclineK(AlSi3O8)
Si MuscoviteKAl2(AlSi3O10)(OH)2
Si QuartzSiO2
Si SchorlNa(Fe32+)Al6(Si6O18)(BO3)3(OH)3(OH)
Si UranophaneCa(UO2)2(SiO3OH)2 · 5H2O
Si ZirconZr(SiO4)
Si SpessartineMn32+Al2(SiO4)3
Si Beryl (var: Heliodor)Be3Al2(Si6O18)
PPhosphorus
P Alluaudite(Na,Ca)Mn2+(Fe3+,Mn2+,Fe2+,Mg)2(PO4)3
P AutuniteCa(UO2)2(PO4)2 · 11H2O
P FluorapatiteCa5(PO4)3F
P GraftoniteFe2+Fe22+(PO4)2
P Hureaulite(Mn,Fe)5(PO4)2(HPO4)2 · 4H2O
P MontebrasiteLiAl(PO4)(OH)
P PhosphosideriteFePO4 · 2H2O
P SickleriteLi1-x(Mnx3+Mn2+1-x)PO4
P TorberniteCu(UO2)2(PO4)2 · 12H2O
P TriphyliteLiFe2+PO4
P VivianiteFe32+(PO4)2 · 8H2O
P AmblygoniteLiAl(PO4)F
P Triploidite(Mn2+,Fe2+)2(PO4)(OH)
P LithiophiliteLiMn2+PO4
P Purpurite(Mn3+,Fe3+)PO4
SSulfur
S ArsenopyriteFeAsS
S PyriteFeS2
S PyrrhotiteFe7S8
KPotassium
K MicroclineK(AlSi3O8)
K MuscoviteKAl2(AlSi3O10)(OH)2
CaCalcium
Ca Alluaudite(Na,Ca)Mn2+(Fe3+,Mn2+,Fe2+,Mg)2(PO4)3
Ca AutuniteCa(UO2)2(PO4)2 · 11H2O
Ca FluorapatiteCa5(PO4)3F
Ca UranophaneCa(UO2)2(SiO3OH)2 · 5H2O
MnManganese
Mn Alluaudite(Na,Ca)Mn2+(Fe3+,Mn2+,Fe2+,Mg)2(PO4)3
Mn Hureaulite(Mn,Fe)5(PO4)2(HPO4)2 · 4H2O
Mn SickleriteLi1-x(Mnx3+Mn2+1-x)PO4
Mn SpessartineMn32+Al2(SiO4)3
Mn Triploidite(Mn2+,Fe2+)2(PO4)(OH)
Mn LithiophiliteLiMn2+PO4
Mn Purpurite(Mn3+,Fe3+)PO4
FeIron
Fe Alluaudite(Na,Ca)Mn2+(Fe3+,Mn2+,Fe2+,Mg)2(PO4)3
Fe ArsenopyriteFeAsS
Fe GraftoniteFe2+Fe22+(PO4)2
Fe LöllingiteFeAs2
Fe PhosphosideriteFePO4 · 2H2O
Fe PyriteFeS2
Fe SchorlNa(Fe32+)Al6(Si6O18)(BO3)3(OH)3(OH)
Fe TriphyliteLiFe2+PO4
Fe VivianiteFe32+(PO4)2 · 8H2O
Fe PyrrhotiteFe7S8
Fe Purpurite(Mn3+,Fe3+)PO4
CuCopper
Cu TorberniteCu(UO2)2(PO4)2 · 12H2O
AsArsenic
As ArsenopyriteFeAsS
As LöllingiteFeAs2
ZrZirconium
Zr ZirconZr(SiO4)
SnTin
Sn CassiteriteSnO2
BiBismuth
Bi BismuthBi
UUranium
U AutuniteCa(UO2)2(PO4)2 · 11H2O
U TorberniteCu(UO2)2(PO4)2 · 12H2O
U UraniniteUO2
U UranophaneCa(UO2)2(SiO3OH)2 · 5H2O

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

Paleoproterozoic
1600 - 2500 Ma



ID: 3191697
Paleoproterozoic crystalline metamorphic rocks

Age: Proterozoic (1600 - 2500 Ma)

Lithology: Paragneiss

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]

Paleoproterozoic
1600 - 2500 Ma



ID: 2796248
Lower Metagraywacke

Age: Proterozoic (1600 - 2500 Ma)

Description: Light- to dark-gray, medium- to thick-bedded, quartz-mica schist containing calc-silicate lenses and ellipsoidal masses. Thickness up to 7,000 ft (2,133 m).

Comments: Original map source: Martin, J.E., Sawyer, J.F., Fahrenbach, M.D., Tomhave, D.W., and Schulz, L.D., 2004, Geologic Map of South Dakota: South Dakota Geological Survey, GM 10, scale 1:500,000.

Lithology: Major:{schist}

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]

Paleoproterozoic
1600 - 2500 Ma



ID: 2471180
Proximal metagraywacke

Age: Proterozoic (1600 - 2500 Ma)

Description: Light-tan, thick-bedded quartzose schist southwest of Grand Junction fault. Predominantly thick Bouma beds of turbidite deposits. Calc-silicate lenses developed from former concretions. Includes lower and upper part of Bugtown Formation (Redden, 1963). Correlation of Bugtown Formation uncertain due to truncation by Grand Junction fault. Total thickness about 2,200 m.

Reference: Redden, J.A., E. DeWitt. Maps Showing Geology, Structure, and Geophysics of the Central Black Hills, South Dakota. U.S. Geological Survey Scientific Investigations Map 2777. [73]

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

References

Sort by

Year (asc) Year (desc) Author (A-Z) Author (Z-A)
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, p. 333-336.
Rocks & Minerals: 60: 113;
Rocks & Minerals: 75(3): 156-169;
Meeves, H., et al (1966), Reconnaissance of beryllium-bearing pegmatite deposits in six western states, US Bur. Mines Info. Circ. 8298: 32 (Table A-1).


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. Public Relations by Blytheweigh.
Copyright © mindat.org and the Hudson Institute of Mineralogy 1993-2019, except where stated. Most political location boundaries are © OpenStreetMap contributors. Mindat.org relies on the contributions of thousands of members and supporters.
Privacy Policy - Terms & Conditions - Contact Us Current server date and time: October 15, 2019 09:41:50 Page generated: May 11, 2019 00:53:34
Go to top of page