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California Gold and Copper Mine (California Gold and Copper Co.; Sixteen-to-One claim; Jackson claim), Spenceville, Spenceville Mining District, Nevada County, California, USAi
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Latitude & Longitude (WGS84):
39° 9' 32'' North , 121° 15' 25'' West
Latitude & Longitude (decimal):
Type:
Köppen climate type:
Nearest Settlements:
| Place | Population | Distance |
|---|---|---|
| Smartsville | 177 (2016) | 6.6km |
| Penn Valley | 1,621 (2011) | 7.0km |
| Lake Wildwood | 4,991 (2011) | 9.6km |
| Beale Air Force Base | 1,319 (2011) | 10.1km |
| Rough and Ready | 963 (2011) | 13.1km |
Nearest Clubs:
Local clubs are the best way to get access to collecting localities
Local clubs are the best way to get access to collecting localities
| Club | Location | Distance |
|---|---|---|
| Nevada County Gem & Mineral Society | Grass Valley, California | 18km |
| Sutter Buttes Gem & Mineral Society | Marysville, California | 29km |
| Roseville Rock Rollers | Roseville, California | 45km |
| Feather River Lapidary & Mineral Society | Oroville, California | 47km |
A former lode Cu-Au-Ag occurrence/mine located in secs. 12 & 13, T15N, R6E, MDM, 5.0 km (3.1 miles) NNE of Spenceville, ESE of Allenwood Hill, on the E canyon wall of Hackett Creek, on federal land. Owned/operated by D. L. Evans (1941- ). MRDS database stated accuracy for this location is 1,000 meters.
Mineralization is a vein deposit hosted in diorite. The ore body strikes N and dips E at a thickness of 1.22 meters. The vein on the Sixteen-to-One claim is a 20 foot vein carrying 7 to 14% Cu. The Jackson claim has a ledge carrying 8% Cu, $10 (period values) Au and is 6 to 7 feet thick. Croppings are found beyond the breast of the tunnel. Local rocks include Mesozoic granitic rocks, unit 3 (Sierra Nevada, Death Valley area, Northern Mojave Desert and Transverse Ranges) and/or Mesozoic volcanic rocks, unit 2 (Western Sierra Foothills and Western Klamath Mountains).
Workings include underground openings. The Sixteen-to-One claim has a 30 foot shaft. The Jackson claim has a 450 foot tunnel. There is another shaft at 50 feet deep in ore.
No production was reported.
Analytical data results: Reported content of 6% Cu, some Au, Ag.
Select Mineral List Type
Standard Detailed Gallery Strunz Chemical ElementsCommodity List
This is a list of exploitable or exploited mineral commodities recorded at this locality.Mineral List
4 valid minerals.
Detailed Mineral List:
| ⓘ Bornite Formula: Cu5FeS4 |
| ⓘ Chalcopyrite Formula: CuFeS2 |
| ⓘ Malachite Formula: Cu2(CO3)(OH)2 |
| ⓘ Quartz Formula: SiO2 |
Gallery:
List of minerals arranged by Strunz 10th Edition classification
| Group 2 - Sulphides and Sulfosalts | |||
|---|---|---|---|
| ⓘ | Bornite | 2.BA.15 | Cu5FeS4 |
| ⓘ | Chalcopyrite | 2.CB.10a | CuFeS2 |
| Group 4 - Oxides and Hydroxides | |||
| ⓘ | Quartz | 4.DA.05 | SiO2 |
| Group 5 - Nitrates and Carbonates | |||
| ⓘ | Malachite | 5.BA.10 | Cu2(CO3)(OH)2 |
List of minerals for each chemical element
| H | Hydrogen | |
|---|---|---|
| H | ⓘ Malachite | Cu2(CO3)(OH)2 |
| C | Carbon | |
| C | ⓘ Malachite | Cu2(CO3)(OH)2 |
| O | Oxygen | |
| O | ⓘ Malachite | Cu2(CO3)(OH)2 |
| O | ⓘ Quartz | SiO2 |
| Si | Silicon | |
| Si | ⓘ Quartz | SiO2 |
| S | Sulfur | |
| S | ⓘ Bornite | Cu5FeS4 |
| S | ⓘ Chalcopyrite | CuFeS2 |
| Fe | Iron | |
| Fe | ⓘ Bornite | Cu5FeS4 |
| Fe | ⓘ Chalcopyrite | CuFeS2 |
| Cu | Copper | |
| Cu | ⓘ Bornite | Cu5FeS4 |
| Cu | ⓘ Chalcopyrite | CuFeS2 |
| Cu | ⓘ Malachite | Cu2(CO3)(OH)2 |
Other Databases
| Link to USGS MRDS: | 10102941 |
|---|
Other Regions, Features and Areas containing this locality
North AmericaContinent
North America PlateTectonic Plate
- Foothills-Wallowa DomainDomain
- Sierra Nevada BatholithVolcanic Arc
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References
(n.d.) Minerals Availability System (MAS), U.S. Bureau of Mines.file #0060570941
(1908, September) The Copper Resources of California. Bulletin 50. California State Mining Bureaup.203
