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Baker Mining District (Pocahontas Mining District), Baker Co., Oregon, USAi
Regional Level Types
Baker Mining District (Pocahontas Mining District)Mining District
Baker Co.County
OregonState
USACountry

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Key
Sheriff Brown's Placer Mine (ca. 1909)

Baker Mining District, Baker Co., Oregon, USA
View of the Baker mining area, ca. 1910.

Baker Mining District, Baker Co., Oregon, USA
Latitude & Longitude (WGS84):
44° North , 117° West (est.)
Estimate based on other nearby localities or region boundaries.
Margin of Error:
~83km
Locality type:
Other/historical names associated with this locality:
Auburn Mining District; Minersville Mining District


The Baker District encompasses the southeastern end of Elkhorn Ridge, southwest of Baker City. It is bordered on the north by the Baker Valley and on the south and east by the Powder River. Parts of the district have been referred to in the past as the Pocahontas, Auburn, and Minersville Districts.

Au lodes and placers.

Regions containing this locality

North America PlateTectonic Plate

Select Mineral List Type

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

15 valid minerals.

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

Select Rock List Type

Alphabetical List Tree Diagram

Detailed Mineral List:

Calcite
Formula: CaCO3
Reference: Gold and Silver in Oregon, Brooks and Le Ramp, 1962
Cervantite
Formula: Sb3+Sb5+O4
Reference: Wagner, Norman S., 1944, Antimony in Oregon, Oregon Department of Geology and Mineral Industries Short Paper 13, page 5.
Chalcopyrite
Formula: CuFeS2
Reference: USGS Prof Paper 610 "Principal Gold Producing Districts of the United States"
Chromite
Formula: Fe2+Cr3+2O4
Reference: U.S. Geological Survey, 2005, Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia.
Galena
Formula: PbS
Reference: USGS Prof Paper 610 "Principal Gold Producing Districts of the United States"
Gold
Formula: Au
Localities: Reported from at least 6 localities in this region.
Ilmenite
Formula: Fe2+TiO3
Reference: U.S. Geological Survey, 2005, Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia.
'Limonite'
Formula: (Fe,O,OH,H2O)
Reference: Grant & Cady 14:155
Magnetite
Formula: Fe2+Fe3+2O4
Reference: U.S. Geological Survey, 2005, Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia.
Malachite
Formula: Cu2(CO3)(OH)2
Muscovite
Formula: KAl2(AlSi3O10)(OH)2
Reference: USGS Prof Paper 610 "Principal Gold Producing Districts of the United States"
Muscovite var: Sericite
Formula: KAl2(AlSi3O10)(OH)2
Reference: USGS Prof Paper 610 "Principal Gold Producing Districts of the United States"
Pyrite
Formula: FeS2
Quartz
Formula: SiO2
Localities: Reported from at least 7 localities in this region.
Scheelite
Formula: Ca(WO4)
Reference: USGS Prof Paper 610 "Principal Gold Producing Districts of the United States"
Sphalerite
Formula: ZnS
Reference: USGS Prof Paper 610 "Principal Gold Producing Districts of the United States"
'Stibiconite'
Formula: Sb3+Sb5+2O6(OH)
Reference: Wagner, Norman S., 1944, Antimony in Oregon, Oregon Department of Geology and Mineral Industries Short Paper 13, page 5.
Stibnite
Formula: Sb2S3

List of minerals arranged by Strunz 10th Edition classification

Group 1 - Elements
Gold1.AA.05Au
Group 2 - Sulphides and Sulfosalts
Chalcopyrite2.CB.10aCuFeS2
Galena2.CD.10PbS
Pyrite2.EB.05aFeS2
Sphalerite2.CB.05aZnS
Stibnite2.DB.05Sb2S3
Group 4 - Oxides and Hydroxides
Cervantite4.DE.30Sb3+Sb5+O4
Chromite4.BB.05Fe2+Cr3+2O4
Ilmenite4.CB.05Fe2+TiO3
Magnetite4.BB.05Fe2+Fe3+2O4
Quartz4.DA.05SiO2
'Stibiconite'4.DH.20Sb3+Sb5+2O6(OH)
Group 5 - Nitrates and Carbonates
Calcite5.AB.05CaCO3
Malachite5.BA.10Cu2(CO3)(OH)2
Group 7 - Sulphates, Chromates, Molybdates and Tungstates
Scheelite7.GA.05Ca(WO4)
Group 9 - Silicates
Muscovite9.EC.15KAl2(AlSi3O10)(OH)2
var: Sericite9.EC.15KAl2(AlSi3O10)(OH)2
Unclassified Minerals, Rocks, etc.
'Limonite'-(Fe,O,OH,H2O)

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
Group 2 - SULFIDES
AmXp, with m:p = 1:1
Galena2.8.1.1PbS
Sphalerite2.8.2.1ZnS
AmBnXp, with (m+n):p = 1:1
Chalcopyrite2.9.1.1CuFeS2
AmBnXp, with (m+n):p = 2:3
Stibnite2.11.2.1Sb2S3
AmBnXp, with (m+n):p = 1:2
Pyrite2.12.1.1FeS2
Group 4 - SIMPLE OXIDES
A2X3
Ilmenite4.3.5.1Fe2+TiO3
AX2
Cervantite4.4.16.1Sb3+Sb5+O4
Group 7 - MULTIPLE OXIDES
AB2X4
Chromite7.2.3.3Fe2+Cr3+2O4
Magnetite7.2.2.3Fe2+Fe3+2O4
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 44 - ANTIMONATES
A2X2O6(O,OH,F)
'Stibiconite'44.1.1.1Sb3+Sb5+2O6(OH)
Group 48 - ANHYDROUS MOLYBDATES AND TUNGSTATES
AXO4
Scheelite48.1.2.1Ca(WO4)
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
Unclassified Minerals, Mixtures, etc.
'Limonite'-(Fe,O,OH,H2O)
Muscovite
var: Sericite
-KAl2(AlSi3O10)(OH)2

List of minerals for each chemical element

HHydrogen
H StibiconiteSb3+Sb25+O6(OH)
H Muscovite (var: Sericite)KAl2(AlSi3O10)(OH)2
H MalachiteCu2(CO3)(OH)2
H Limonite(Fe,O,OH,H2O)
H MuscoviteKAl2(AlSi3O10)(OH)2
CCarbon
C CalciteCaCO3
C MalachiteCu2(CO3)(OH)2
OOxygen
O QuartzSiO2
O CalciteCaCO3
O CervantiteSb3+Sb5+O4
O StibiconiteSb3+Sb25+O6(OH)
O Muscovite (var: Sericite)KAl2(AlSi3O10)(OH)2
O ScheeliteCa(WO4)
O MagnetiteFe2+Fe23+O4
O IlmeniteFe2+TiO3
O ChromiteFe2+Cr23+O4
O MalachiteCu2(CO3)(OH)2
O Limonite(Fe,O,OH,H2O)
O MuscoviteKAl2(AlSi3O10)(OH)2
AlAluminium
Al Muscovite (var: Sericite)KAl2(AlSi3O10)(OH)2
Al MuscoviteKAl2(AlSi3O10)(OH)2
SiSilicon
Si QuartzSiO2
Si Muscovite (var: Sericite)KAl2(AlSi3O10)(OH)2
Si MuscoviteKAl2(AlSi3O10)(OH)2
SSulfur
S PyriteFeS2
S StibniteSb2S3
S ChalcopyriteCuFeS2
S SphaleriteZnS
S GalenaPbS
KPotassium
K Muscovite (var: Sericite)KAl2(AlSi3O10)(OH)2
K MuscoviteKAl2(AlSi3O10)(OH)2
CaCalcium
Ca CalciteCaCO3
Ca ScheeliteCa(WO4)
TiTitanium
Ti IlmeniteFe2+TiO3
CrChromium
Cr ChromiteFe2+Cr23+O4
FeIron
Fe PyriteFeS2
Fe ChalcopyriteCuFeS2
Fe MagnetiteFe2+Fe23+O4
Fe IlmeniteFe2+TiO3
Fe ChromiteFe2+Cr23+O4
Fe Limonite(Fe,O,OH,H2O)
CuCopper
Cu ChalcopyriteCuFeS2
Cu MalachiteCu2(CO3)(OH)2
ZnZinc
Zn SphaleriteZnS
SbAntimony
Sb StibniteSb2S3
Sb CervantiteSb3+Sb5+O4
Sb StibiconiteSb3+Sb25+O6(OH)
WTungsten
W ScheeliteCa(WO4)
AuGold
Au GoldAu
PbLead
Pb GalenaPbS

References

Sort by

Year (asc) Year (desc) Author (A-Z) Author (Z-A)
Brooks, Howard C., Len Ramp (1968), Gold and Silver in Oregon, Oregon Department of Geology and Mineral Industries Bulletin 61.

Localities in this Region


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