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Pocahontas Mine [1] (Pocahontas claim; Minnehaha claim), Glazer Point, Granite Basin Mining District, Plumas County, California, USAi
Regional Level Types
Pocahontas Mine [1] (Pocahontas claim; Minnehaha claim)Mine
Glazer PointPoint
Granite Basin Mining DistrictMining District
Plumas CountyCounty
CaliforniaState
USACountry

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Latitude & Longitude (WGS84):
39° 46' 25'' North , 121° 14' 57'' West
Latitude & Longitude (decimal):
Type:
Nearest Settlements:
PlacePopulationDistance
Berry Creek1,424 (2011)19.4km
Meadow Valley464 (2011)23.6km
Concow710 (2011)24.2km
Yankee Hill333 (2011)24.6km
Clipper Mills142 (2011)27.9km
Nearest Clubs:
Local clubs are the best way to get access to collecting localities
ClubLocationDistance
Paradise Gem & Mineral ClubParadise, California32km
Feather River Lapidary & Mineral SocietyOroville, California39km
Mindat Locality ID:
86456
Long-form identifier:
mindat:1:2:86456:2
GUID (UUID V4):
0


A former Cu-Au-Ag mine located in sec. 12, T22N, R6E, MDM, 1.7 km (5,700 feet) SW of Glazer Point, along Glazer Creek, about 20 miles from Susanville, Indian Valley, on National Forest land. MRDS database stated accuracy for this location is 10,000 meters.

Mineralization is a vein deposit hosted in slate and porphyry. The ore body strikes NE and dips 80E at 1.22 meters thick and 914.4 meters long. The footwall is Calaveras slates and the hanging wall is porphyry (possibly schists). The rock in which the Cu bodies are found is largely epidote filled with small grains of native copper. The kidneys show large lumps on native Cu, with red oxide and carbonates. Local rocks include Paleozoic metavolcanic rocks, unit 3 (Northwestern Sierra Nevada) and/or Permian marine sedimentary rocks, unit 2 (Northwestern Sierra Nevada).

Workings include underground openings (30 foot deep shaft and a 40 foot tunnel on the Pocahontas claim; a 40 foot incline on the Minnehaha claim. Other workings consist of 7 open cuts at intervals of 100 feet.

Analytical data showed $5 Au, $3 Ag and $6 Cu (period values), from various openings.

Select Mineral List Type

Standard Detailed Gallery Strunz Chemical Elements

Mineral List


6 valid minerals.

Detailed Mineral List:

โ“˜ Cuprite
Formula: Cu2O
โ“˜ Epidote
Formula: (CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
โ“˜ Malachite
Formula: Cu2(CO3)(OH)2
โ“˜ Millerite
Formula: NiS
Description: Occurs as coatings.
โ“˜ Native Copper
Formula: Cu
โ“˜ Native Silver
Formula: Ag

Gallery:

List of minerals arranged by Strunz 10th Edition classification

Group 1 - Elements
โ“˜Native Copper1.AA.05Cu
โ“˜Native Silver1.AA.05Ag
Group 2 - Sulphides and Sulfosalts
โ“˜Millerite2.CC.20NiS
Group 4 - Oxides and Hydroxides
โ“˜Cuprite4.AA.10Cu2O
Group 5 - Nitrates and Carbonates
โ“˜Malachite5.BA.10Cu2(CO3)(OH)2
Group 9 - Silicates
โ“˜Epidote9.BG.05a(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)

List of minerals for each chemical element

HHydrogen
Hโ“˜ Epidote(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
Hโ“˜ MalachiteCu2(CO3)(OH)2
CCarbon
Cโ“˜ MalachiteCu2(CO3)(OH)2
OOxygen
Oโ“˜ CupriteCu2O
Oโ“˜ Epidote(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
Oโ“˜ MalachiteCu2(CO3)(OH)2
AlAluminium
Alโ“˜ Epidote(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
SiSilicon
Siโ“˜ Epidote(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
SSulfur
Sโ“˜ MilleriteNiS
CaCalcium
Caโ“˜ Epidote(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
FeIron
Feโ“˜ Epidote(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
NiNickel
Niโ“˜ MilleriteNiS
CuCopper
Cuโ“˜ CupriteCu2O
Cuโ“˜ Native CopperCu
Cuโ“˜ MalachiteCu2(CO3)(OH)2
AgSilver
Agโ“˜ Native SilverAg

Other Databases

Link to USGS MRDS:10139979

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