Hinchman Mine (North Star Mine; Polar Mine), Genesee, Genesee Valley Mining District (Genesee Mining District), Plumas Copper Belt, Plumas County, California, USAi
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Latitude & Longitude (WGS84):
40° 3' 26'' North , 120° 47' 24'' West
Latitude & Longitude (decimal):
Type:
Köppen climate type:
Nearest Settlements:
| Place | Population | Distance |
|---|---|---|
| Taylorsville | 140 (2011) | 4.7km |
| Crescent Mills | 196 (2011) | 11.2km |
| Greenville | 1,129 (2011) | 16.5km |
| East Quincy | 2,489 (2011) | 16.5km |
| Greenhorn | 236 (2011) | 17.3km |
A former Cu-Au mine located in sec. 6, T25N, R11E, MDM, 3.5 km (2.2 miles) WNW of Genesee, S of Mount Jura, on National Forest land. MRDS database stated accuracy for this location is 500 meters.
Mineralization is a vein deposit hosted in andesite. The ore body strikes N20W and dips 70SW, at 914.4 meters long. Local rocks include Mesozoic volcanic rocks, unit 5 (Northern Sierra Nevada and Eastern Klamath Mountains).
Workings include underground openings. Underground development totals 341.38 meters in length at an overall depth of 6.1 meters. Workings consist of 600 feet of open cuts and a 20 foot deep shaft plus an adit 500 feet long.
Production included ore shipped from surface workings during the early days (1860's). 100 tons of ore of two grades are on the dump. The best averages 10% Cu, $3 Au, and $3 Ag (period values).
Select Mineral List Type
Standard Detailed Gallery Strunz Chemical ElementsGallery:
List of minerals arranged by Strunz 10th Edition classification
| Group 2 - Sulphides and Sulfosalts | |||
|---|---|---|---|
| ⓘ | Bornite | 2.BA.15 | Cu5FeS4 |
List of minerals for each chemical element
| S | Sulfur | |
|---|---|---|
| S | ⓘ Bornite | Cu5FeS4 |
| Fe | Iron | |
| Fe | ⓘ Bornite | Cu5FeS4 |
| Cu | Copper | |
| Cu | ⓘ Bornite | Cu5FeS4 |
Other Databases
| Link to USGS MRDS: | 10077098 |
|---|
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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