Alaska Mine, Pike (Pike City), Pike Mining District, Sierra County, California, USAi
| Regional Level Types | |
|---|---|
| Alaska Mine | Mine |
| Pike (Pike City) | - not defined - |
| Pike Mining District | Mining District |
| Sierra County | County |
| California | State |
| USA | Country |
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Latitude & Longitude (WGS84):
39° 26' 44'' North , 120° 59' 40'' West
Latitude & Longitude (decimal):
Type:
Köppen climate type:
Nearest Settlements:
| Place | Population | Distance |
|---|---|---|
| Pike | 134 (2011) | 0.8km |
| Camptonville | 158 (2011) | 4.7km |
| North San Juan | 269 (2011) | 12.7km |
| Clipper Mills | 142 (2011) | 17.0km |
| Downieville | 282 (2011) | 19.1km |
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 | 26km |
| Feather River Lapidary & Mineral Society | Oroville, California | 49km |
Mindat Locality ID:
8168
Long-form identifier:
mindat:1:2:8168:2
GUID (UUID V4):
a886ed06-e6e6-4ecf-9b13-05f72d245956
A former Au-Pb-Cu-Ag-talc/soapstone mine located in sec. 5 & in the N½ sec. 8, T18N, R9E, MDM, 0.8 km (0.5 mile) NNE of Pike (7¾ miles W of Alleghany), ESE of Alaska Peak, on private land within a National Forest area. MRDS database stated accuracy for this location is 500 meters.
Mineralization is a vein deposit with ore shoots hosted in granodiorite, slate & argillite. The ore body strikes NE and dips 90 at a thickness of 5.49 meters. A single vein that branches at 3 to 18 feet in thickness, with the footwall and hanging wall either slate or diorite, but mostly slate. Faulting 2,500 feet NE of the shaft offsets the vein about 60 feet S. McCulloch noted siliceous argillite. Local rocks include undivided pre-Cenozoic metavolcanic rocks, unit 2 (undivided).
Workings include underground openings with an overall depth of 207.26 meters and comprised of a 795 foot shaft with 3,000 feet of drifts at the 680 feet, 440 feet of drifting along the S strand. Also includes major stopes, gamma, 626, & Dalmy winzes.
Production data are found in: Averill, Charles V. (1942a); McCulloch, W.C., Oesterling, W.A., Spurck, W.H., & Tischler, M.S. (1964).
Intermittently mined. By-products included 48,000 pounds Pb, 8,000 pounds Cu plus some Ag:Au of 5:6.
Production statistics: Year: 1953 (period = 1893 to 1953): ore (accurate): ^$10 (period values)/ton Au, 0.5 pound (253 grams)/ton Pb, 0.08 pound (41 grams)/ton Cu.
Select Mineral List Type
Standard Detailed Gallery Strunz Chemical ElementsGallery:
List of minerals arranged by Strunz 10th Edition classification
| Group 9 - Silicates | |||
|---|---|---|---|
| ⓘ | Talc | 9.EC.05 | Mg3Si4O10(OH)2 |
List of minerals for each chemical element
| H | Hydrogen | |
|---|---|---|
| H | ⓘ Talc | Mg3Si4O10(OH)2 |
| O | Oxygen | |
| O | ⓘ Talc | Mg3Si4O10(OH)2 |
| Mg | Magnesium | |
| Mg | ⓘ Talc | Mg3Si4O10(OH)2 |
| Si | Silicon | |
| Si | ⓘ Talc | Mg3Si4O10(OH)2 |
Other Databases
| Link to USGS MRDS: | 10106524 |
|---|
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References
(n.d.) Minerals Availability System (MAS), U.S. Bureau of Mines.file #0060910010
