Coau Mine, Nevada City, Nevada City Mining District, Nevada County, California, USAi
| Regional Level Types | |
|---|---|
| Coau Mine | Mine |
| Nevada City | City |
| Nevada City Mining District | Mining District |
| Nevada County | County |
| California | State |
| USA | Country |
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Latitude & Longitude (WGS84):
39° 16' 46'' North , 121° 3' 54'' West
Latitude & Longitude (decimal):
Type:
Köppen climate type:
Nearest Settlements:
| Place | Population | Distance |
|---|---|---|
| Nevada City | 3,152 (2017) | 4.5km |
| Grass Valley | 12,944 (2017) | 6.7km |
| Rough and Ready | 963 (2011) | 8.2km |
| North San Juan | 269 (2011) | 10.5km |
| Lake Wildwood | 4,991 (2011) | 12.8km |
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 | 7km |
| Sutter Buttes Gem & Mineral Society | Marysville, California | 48km |
| Feather River Lapidary & Mineral Society | Oroville, California | 50km |
Mindat Locality ID:
83972
Long-form identifier:
mindat:1:2:83972:4
GUID (UUID V4):
4b8a7ed4-ebf8-4917-81eb-7afd465f261c
A former lode Au occurrence/mine located in the SW¼NE¼ (estimated) sec. 3, T16N, R8E, MDM, about 5 km (3 miles) WNW of Nevada City proper, N of Rush Creek and S of the W end of Cement Hill. MRDS database stated accuracy for this location is 1,000 meters.
Mineralization is hosted in diorite and aplite. The ore body strikes N75W and dips 45N at a thickness of 6.1 meters. Deposit lies near a contact with metamorphosed slate. Associated rocks include Pennsylvanian slate of the Calaveras Complex. Local rocks include Mesozoic gabbroic rocks, unit 2 (undivided) and/or Mesozoic volcanic rocks, unit 2 (Western Sierra Foothills and Western Klamath Mountains).
Workings include underground openings with a length of 618.74 meters and an overall depth of 152.4 meters and comprised of a shaft with 3 levels and drifts.
Analytical data results: Sulfides were assayed at $40 to $100 (period values)/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 2 - Sulphides and Sulfosalts | |||
| ⓘ | Chalcopyrite | 2.CB.10a | CuFeS2 |
| ⓘ | Pyrite | 2.EB.05a | FeS2 |
List of minerals for each chemical element
| S | Sulfur | |
|---|---|---|
| S | ⓘ Chalcopyrite | CuFeS2 |
| S | ⓘ Pyrite | FeS2 |
| Fe | Iron | |
| Fe | ⓘ Chalcopyrite | CuFeS2 |
| Fe | ⓘ Pyrite | FeS2 |
| Cu | Copper | |
| Cu | ⓘ Chalcopyrite | CuFeS2 |
| Au | Gold | |
| Au | ⓘ Gold | Au |
Other Databases
| Link to USGS MRDS: | 10101222 |
|---|
Other Regions, Features and Areas containing this locality
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References
(n.d.) Minerals Availability System (MAS), U.S. Bureau of Mines.file #0060570725
