International Mine (Cons. Intl. [Consolidated International]; International Quartz Mine), Grizzly Bear House, Placer County, California, USAi
| Regional Level Types | |
|---|---|
| International Mine (Cons. Intl. [Consolidated International]; International Quartz Mine) | Mine |
| Grizzly Bear House | - not defined - |
| Placer County | County |
| California | State |
| USA | Country |
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Latitude & Longitude (WGS84):
38° 59' 15'' North , 120° 54' 41'' West
Latitude & Longitude (decimal):
Type:
Köppen climate type:
Nearest Settlements:
| Place | Population | Distance |
|---|---|---|
| Foresthill | 1,483 (2011) | 8.8km |
| Auburn Lake Trails | 3,426 (2011) | 8.9km |
| Meadow Vista | 3,217 (2011) | 9.7km |
| Georgetown | 2,367 (2011) | 11.0km |
| Colfax | 2,005 (2017) | 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 | 29km |
| El Dorado County Mineral and Gem Society | Placerville, California | 30km |
| Gold Country Treasure Seekers | Placerville, California | 30km |
| Roseville Rock Rollers | Roseville, California | 42km |
A former lode Au occurrence/mine located in the SE¼ (estimated) sec. 12, T13N, R9E, MDM, about 8.2 km NE of Grizzly Bear House and 5.6 km WSW of Todd Valley (7 miles SW of Forest Hill). Owned by Patrick McInnis (1935). MRDS database stated accuracy for this location is 500 meters.
Mineralization is a vein deposit (?) hosted in porphyry. The ore body is 15.24 meters thick. The Au was found along the footwall of a 50 foot thick porphyry dike. Local rocks include Mesozoic volcanic rocks, unit 2 (Western Sierra Foothills and Western Klamath Mountains).
Workings include unspecified underground openings.
Analytical data results: Estimated assays at $3.75 to $15 (period values) Au/ton.
Select Mineral List Type
Standard Detailed Gallery Strunz Chemical ElementsGallery:
List of minerals arranged by Strunz 10th Edition classification
| Group 1 - Elements | |||
|---|---|---|---|
| ⓘ | 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 | ⓘ Gold | Au |
Other Databases
| Link to USGS MRDS: | 10007726 |
|---|
Other Regions, Features and Areas containing this locality
North AmericaContinent
North America PlateTectonic Plate
- Calaveras-Baker 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 #0060610215
