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Granite Basin Mining District, Plumas County, California, USAi
| Regional Level Types | |
|---|---|
| Granite Basin Mining District | Mining District |
| Plumas County | County |
| California | State |
| USA | Country |
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Latitude & Longitude (WGS84):
40° North , 120° West (est.)
Estimate based on other nearby localities or region boundaries.
Margin of Error:
~75km
Type:
Kรถppen climate type:
The Granite Basin district straddles the Butte-Plumas County line about 30 miles northeast of Oroville and 30 miles west southwest of Quincy. It includes the Buckeye, Gold Lake, Milsap Bar, Soapstone Hill, and Merrimac areas. The area was placer mined during and after the gold rush. There was some lode mining here in the 1930s, and there has been minor prospecting since.
Geology: Several granitic stocks are intrusive into slate, quartzite and limestone of the Calaveras Formation (Carboniferous to Permian) and amphibolite. Exfoliation has formed several round granitic domes, of which Bald Rock is the most prominent. Serpentine, some Tertiary basalt and a few patches of Tertiary auriferous gravel are present. The quartz veins usually occur in the granite. The veins are narrow, but the ore bodies often are rich. Pyrite and galena are abundant.
Mines:
Lode: Hardquartz, Hose, Reynolds.
Placer: Buckeye drift, Coquette, Horseshoe, Milsap Bar, Robinson.
Select Mineral List Type
Standard Detailed Gallery Strunz Chemical ElementsCommodity 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-localities9 valid minerals.
Detailed Mineral List:
| โ Anglesite Formula: PbSO4 Description: Occurs in Au ores. References: |
| โ Cuprite Formula: Cu2O |
| โ Epidote Formula: (CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH) |
| โ Malachite Formula: Cu2(CO3)(OH)2 References: |
| โ Millerite Formula: NiS Description: Occurs as coatings. |
| โ Native Copper Formula: Cu |
| โ Native Gold Formula: Au Locality: Little Lady Placer Mine, Glazer Point, Granite Basin Mining District, Plumas County, California, USA Description: Placer material. |
| โ Native Silver Formula: Ag |
| โ Wulfenite Formula: Pb(MoO4) Description: Occurs in an oxidized zone in gold ores. |
Gallery:
List of minerals arranged by Strunz 10th Edition classification
| Group 1 - Elements | |||
|---|---|---|---|
| โ | Native Copper | 1.AA.05 | Cu |
| โ | Native Gold | 1.AA.05 | Au |
| โ | Native Silver | 1.AA.05 | Ag |
| Group 2 - Sulphides and Sulfosalts | |||
| โ | Millerite | 2.CC.20 | NiS |
| Group 4 - Oxides and Hydroxides | |||
| โ | Cuprite | 4.AA.10 | Cu2O |
| Group 5 - Nitrates and Carbonates | |||
| โ | Malachite | 5.BA.10 | Cu2(CO3)(OH)2 |
| Group 7 - Sulphates, Chromates, Molybdates and Tungstates | |||
| โ | Anglesite | 7.AD.35 | PbSO4 |
| โ | Wulfenite | 7.GA.05 | Pb(MoO4) |
| Group 9 - Silicates | |||
| โ | Epidote | 9.BG.05a | (CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH) |
List of minerals for each chemical element
| H | Hydrogen | |
|---|---|---|
| H | โ Epidote | (CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH) |
| H | โ Malachite | Cu2(CO3)(OH)2 |
| C | Carbon | |
| C | โ Malachite | Cu2(CO3)(OH)2 |
| O | Oxygen | |
| O | โ Anglesite | PbSO4 |
| O | โ Cuprite | Cu2O |
| O | โ Epidote | (CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH) |
| O | โ Malachite | Cu2(CO3)(OH)2 |
| O | โ Wulfenite | Pb(MoO4) |
| Al | Aluminium | |
| Al | โ Epidote | (CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH) |
| Si | Silicon | |
| Si | โ Epidote | (CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH) |
| S | Sulfur | |
| S | โ Anglesite | PbSO4 |
| S | โ Millerite | NiS |
| Ca | Calcium | |
| Ca | โ Epidote | (CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH) |
| Fe | Iron | |
| Fe | โ Epidote | (CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH) |
| Ni | Nickel | |
| Ni | โ Millerite | NiS |
| Cu | Copper | |
| Cu | โ Cuprite | Cu2O |
| Cu | โ Native Copper | Cu |
| Cu | โ Malachite | Cu2(CO3)(OH)2 |
| Mo | Molybdenum | |
| Mo | โ Wulfenite | Pb(MoO4) |
| Ag | Silver | |
| Ag | โ Native Silver | Ag |
| Au | Gold | |
| Au | โ Native Gold | Au |
| Pb | Lead | |
| Pb | โ Anglesite | PbSO4 |
| Pb | โ Wulfenite | Pb(MoO4) |
Localities in this Region
- California
- Plumas County
- California
- Plumas County
- Granite Basin Mining District
- Glazer Point
- Hardquartz Mine (Broken Back Mine)
- Jennie Jamie occurrence
- Joshua Moss occurrence
- Little Lady Placer Mine
- Marble Creek deposit
- Mudhen & Minnie S occurrence
- New Century & Whidden occurrence
- Pocahontas Mine [1] (Pocahontas claim; Minnehaha claim)
- Robinson occurrence (Trenton; Morning Star)
- Unnamed Au occurrence [48]
- Glazer Point
- Granite Basin Mining District
- Plumas County
Other Regions, Features and Areas containing this locality
North AmericaContinent
North America PlateTectonic Plate
- Columbia Basin and RangeWide Rift
- Shoofly-Olds Ferry DomainDomain
USA
- Sierra NevadaMountain Range
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References
