Phoenix Park Mine, La Barr Meadows, Grass Valley Mining District, Nevada County, California, USAi
| Regional Level Types | |
|---|---|
| Phoenix Park Mine | Mine |
| La Barr Meadows | - not defined - |
| Grass Valley Mining District | Mining District |
| Nevada County | County |
| California | State |
| USA | Country |
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Latitude & Longitude (WGS84):
39° 10' 38'' North , 121° 4' 0'' West
Latitude & Longitude (decimal):
Type:
Köppen climate type:
Nearest Settlements:
| Place | Population | Distance |
|---|---|---|
| Alta Sierra | 6,911 (2011) | 4.1km |
| Grass Valley | 12,944 (2017) | 4.7km |
| Rough and Ready | 963 (2011) | 8.4km |
| Nevada City | 3,152 (2017) | 10.3km |
| Penn Valley | 1,621 (2011) | 10.9km |
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 | 5km |
| Sutter Buttes Gem & Mineral Society | Marysville, California | 45km |
A former lode Au occurrence/mine located in sec. 3, T15N, R8E, MDM, about 2 km W of La Barr Meadows, along Allison Ranch Road, W of Wolf Creek (2.5 miles S of Grass Valley). MRDS database stated accuracy for this location is 1,000 meters.
Mineralization is hosted in granodiorite. The ore body strikes N and dips 45NW at a thickness of 5.49 meters. Local alteration includes granodiorite that is ankeritized. Greenstone and aplite dikes are exposed in the workings. Local rocks include Mesozoic granitic rocks, unit 3 (Sierra Nevada, Death Valley area, Northern Mojave Desert and Transverse Ranges).
Workings include underground openings with a length of 304.8 meters and an overall depth of 121.92 meters and comprised of a shaft, winze & drifts.
Analytical data results: Assays from $0 to $100 (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 |
| Group 5 - Nitrates and Carbonates | |||
| ⓘ | Ankerite | 5.AB.10 | Ca(Fe2+,Mg)(CO3)2 |
List of minerals for each chemical element
| C | Carbon | |
|---|---|---|
| C | ⓘ Ankerite | Ca(Fe2+,Mg)(CO3)2 |
| O | Oxygen | |
| O | ⓘ Ankerite | Ca(Fe2+,Mg)(CO3)2 |
| O | ⓘ Quartz | SiO2 |
| Mg | Magnesium | |
| Mg | ⓘ Ankerite | Ca(Fe2+,Mg)(CO3)2 |
| Si | Silicon | |
| Si | ⓘ Quartz | SiO2 |
| Ca | Calcium | |
| Ca | ⓘ Ankerite | Ca(Fe2+,Mg)(CO3)2 |
| Fe | Iron | |
| Fe | ⓘ Ankerite | Ca(Fe2+,Mg)(CO3)2 |
| Au | Gold | |
| Au | ⓘ Gold | Au |
Other Databases
| Link to USGS MRDS: | 10007303 |
|---|
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 #0060570166
