Centennial Mine (New Champion Mine), West Point, West Point Mining District, East Belt, Calaveras County, California, USAi
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Latitude & Longitude (WGS84):
38° 24' 2'' North , 120° 32' 46'' West
Latitude & Longitude (decimal):
Type:
Köppen climate type:
Nearest Settlements:
| Place | Population | Distance |
|---|---|---|
| West Point | 674 (2011) | 1.6km |
| Pioneer | 1,094 (2011) | 4.1km |
| Red Corral | 1,413 (2017) | 5.3km |
| Buckhorn | 2,429 (2017) | 5.9km |
| Rail Road Flat | 475 (2015) | 6.9km |
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 |
|---|---|---|
| Amador County Gem & Mineral Society | Sutter Creek, California | 22km |
| Calaveras Gem & Mineral Society | Angels Camp, California | 37km |
| El Dorado County Mineral and Gem Society | Placerville, California | 43km |
| Gold Country Treasure Seekers | Placerville, California | 43km |
A former lode Au-Pb-Cu mine located in the SE¼ sec. 4, T6N, R13E, MDM, 1.7 km (1.1 miles) W of West Point. Operated during the periods 1937 to 1940 and 1946 to 1954. MRDS database stated accuracy for this location is 100 meters.
NOTE: Seemingly conflicting data regarding strike & dip of the deposit plus confusing data regarding workings noted in MRDS files.
Mineralization is a vein deposit hosted in diorite. The ore body strikes N15W and dips 50SW at a thickness of 1.22 meters. The body is a lens-shaped quartz vein within a diorite dike. The dip of the dike and vein are S and E with a 35 to 65 degree dip (sic). The country rock is granodiorite. The main ore shoot is 10 inches (25 cm) to 4 feet (1.29 meters). Local rocks include Mesozoic granitic rocks, unit 3 (Sierra Nevada, Death Valley area, Northern Mojave Desert and Transverse Ranges).
Local structures include a dike of medium-grained diorite along the footwall of the vein.
Workings include underground openings with an overall depth of 60.96 meters and comprised of a 200 foot inclined shaft with levels at 100 and 200 feet and a 55 foot inclined shaft about 400 feet to the SE. A 90 foot drift to the SE was driven on the 100 foot level and a 650 foot drift to the SE plus a 350 foot drift to the NW were driven o n the 200 level. There is also a winze plus stopes (stope length of 90 feet mined down to 700 feet).
Rich Au & galena ore was encountered on the 400 level (100 feet 1n).
Select Mineral List Type
Standard Detailed Gallery Strunz Chemical ElementsDetailed Mineral List:
| ⓘ Chalcopyrite Formula: CuFeS2 |
| ⓘ Galena Formula: PbS |
| ⓘ Native Gold Formula: Au |
| ⓘ Pyrite Formula: FeS2 |
| ⓘ Quartz Formula: SiO2 |
| ⓘ Sphalerite Formula: ZnS |
Gallery:
List of minerals arranged by Strunz 10th Edition classification
| Group 1 - Elements | |||
|---|---|---|---|
| ⓘ | Native Gold | 1.AA.05 | Au |
| Group 2 - Sulphides and Sulfosalts | |||
| ⓘ | Sphalerite | 2.CB.05a | ZnS |
| ⓘ | Chalcopyrite | 2.CB.10a | CuFeS2 |
| ⓘ | 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 | ⓘ Chalcopyrite | CuFeS2 |
| S | ⓘ Galena | PbS |
| S | ⓘ Pyrite | FeS2 |
| S | ⓘ Sphalerite | ZnS |
| Fe | Iron | |
| Fe | ⓘ Chalcopyrite | CuFeS2 |
| Fe | ⓘ Pyrite | FeS2 |
| Cu | Copper | |
| Cu | ⓘ Chalcopyrite | CuFeS2 |
| Zn | Zinc | |
| Zn | ⓘ Sphalerite | ZnS |
| Au | Gold | |
| Au | ⓘ Native Gold | Au |
| Pb | Lead | |
| Pb | ⓘ Galena | PbS |
Other Databases
| Link to USGS MRDS: | 10029289 |
|---|
Other Regions, Features and Areas containing this locality
North AmericaContinent
North America PlateTectonic Plate
- Shoofly-Olds Ferry DomainDomain
- Sierra Nevada BatholithVolcanic Arc
USA
- Sierra NevadaMountain Range
This page contains all mineral locality references listed on mindat.org. This does not claim to be a complete list. If you know of more minerals from this site, please register so you can add to our database. This locality information is for reference purposes only. You should never attempt to
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References
(n.d.) Minerals Availability System (MAS), U.S. Bureau of Mines.file ID #0060090708
