Atom group, Indian Hill, Indian Hill Mining District, Sierra County, California, USAi
| Regional Level Types | |
|---|---|
| Atom group | - not defined - |
| Indian Hill | Hill |
| Indian Hill Mining District | Mining District |
| Sierra County | County |
| California | State |
| USA | Country |
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Latitude & Longitude (WGS84):
39° 29' 18'' North , 120° 59' 52'' West
Latitude & Longitude (decimal):
Köppen climate type:
Nearest Settlements:
| Place | Population | Distance |
|---|---|---|
| Pike | 134 (2011) | 5.5km |
| Camptonville | 158 (2011) | 6.0km |
| Clipper Mills | 142 (2011) | 14.6km |
| North San Juan | 269 (2011) | 16.1km |
| Downieville | 282 (2011) | 16.6km |
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 | 30km |
| Feather River Lapidary & Mineral Society | Oroville, California | 48km |
A former lode Au occurrence/mine located in sec. 30, T19N, R9E, MDM, 2.1 km (1.3 miles) SSW of Indian Hill and S of Jouberts Road (4 miles NE of Camptonville), on National Forest land. MRDS database stated accuracy for this location is 500 meters.
Mineralization is a vein deposit hosted in slate and porphyry. The ore body strikes NE and dips vertically. The vein is 20 inches (50 cm) thick and is covered by gravel, except where it is exposed by hydraulic workings. Local rocks include undivided pre-Cenozoic metavolcanic rocks, unit 2 (undivided) and/or Tertiary pyroclastic and volcanic mudflow deposits, unit 9 (Cascade Range).
Workings include surface and underground openings with a length of 457.2 meters and comprised of a 50 foot adit and 100 foot deep glory holes.
Tghis mine has been long idle. No production record was found.
Select Mineral List Type
Standard Detailed Gallery Strunz Chemical ElementsDetailed Mineral List:
| ⓘ Native Gold Formula: Au |
| ⓘ Quartz Formula: SiO2 |
Gallery:
List of minerals arranged by Strunz 10th Edition classification
| Group 1 - Elements | |||
|---|---|---|---|
| ⓘ | Native Gold | 1.AA.05 | Au |
| Group 4 - Oxides and Hydroxides | |||
| ⓘ | Quartz | 4.DA.05 | SiO2 |
List of minerals for each chemical element
| O | Oxygen | |
|---|---|---|
| O | ⓘ Quartz | SiO2 |
| Si | Silicon | |
| Si | ⓘ Quartz | SiO2 |
| Au | Gold | |
| Au | ⓘ Native Gold | Au |
Other Databases
| Link to USGS MRDS: | 10086506 |
|---|
Other Regions, Features and Areas containing this locality
North AmericaContinent
North America PlateTectonic Plate
- Foothills-Wallowa DomainDomain
- Sierra Nevada BatholithVolcanic Arc
USA
- Sierra NevadaMountain Range
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References
(n.d.) Minerals Availability System (MAS), U.S. Bureau of Mines.file #0060910050
