Republic Quartz Mine [1] (National group; National Quartz Mine; Republic Qtz.), Graniteville, Graniteville Mining District (Eureka Mining District), Nevada County, California, USAi
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Latitude & Longitude (WGS84):
39° 25' 26'' North , 120° 45' 47'' West
Latitude & Longitude (decimal):
Type:
Köppen climate type:
Nearest Settlements:
| Place | Population | Distance |
|---|---|---|
| Washington | 185 (2011) | 7.8km |
| Downieville | 282 (2011) | 16.0km |
| Sierra City | 221 (2011) | 19.3km |
| Pike | 134 (2011) | 20.2km |
| Alta | 610 (2011) | 24.5km |
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 | 34km |
A former lode Au occurrence/mine located in the W½SE¼ sec. 17, T18N, R11E, MDM, 2.7 km (1.7 miles) SW of Graniteville, on the W canyon wall of Poorman Creek (½ mile E of the Quinn Ranch), on private (patented) land within a National Forest area. The property comprises 22.87 acres. MRDS database accuracy for this location is not stated.
Mineralization is a vein deposit hosted in slate. The ore body strikes N3E and dips 45 to 78 at a thickness of 3.66 meters. The vein is 2 feet to 12 feet thick, averaging 8 feet thick. The vein carries 1 to 2% sulfides. Local rocks include Paleozoic marine rocks, undivided, unit 4 (Western Sierra Nevada).
Workings include underground openings with a length of 914.4 meters and an overall depth of 60.96 meters and comprised of 3 tunnels (adits ?), raises, etc.
Production data are found in: McCulloch, W.C., Oesterling, W.A., Spurck, W.H., & Tischler, M.S. (1964).
No other production record was found.
Analytical data results: Sulfides average $50 to $90 (period values) Au/ton. Ore assays at 0.024 to 0.3 ounces of Au/ton.
Select Mineral List Type
Standard Detailed Gallery Strunz Chemical ElementsDetailed Mineral List:
| ⓘ Galena Formula: PbS |
| ⓘ Gold Formula: Au |
| ⓘ Pyrite Formula: FeS2 |
| ⓘ Quartz Formula: SiO2 |
Gallery:
List of minerals arranged by Strunz 10th Edition classification
| Group 1 - Elements | |||
|---|---|---|---|
| ⓘ | Gold | 1.AA.05 | Au |
| Group 2 - Sulphides and Sulfosalts | |||
| ⓘ | Galena | 2.CD.10 | PbS |
| ⓘ | Pyrite | 2.EB.05a | FeS2 |
| 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 |
| S | Sulfur | |
| S | ⓘ Galena | PbS |
| S | ⓘ Pyrite | FeS2 |
| Fe | Iron | |
| Fe | ⓘ Pyrite | FeS2 |
| Au | Gold | |
| Au | ⓘ Gold | Au |
| Pb | Lead | |
| Pb | ⓘ Galena | PbS |
Other Databases
| Link to USGS MRDS: | 10101317 |
|---|
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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