Consolidated Eureka II Mine (Lafayette & Eastern Star Mine; Eastern Star; Eureka II Mine; Lafayette), Coulterville, Coulterville Mining District, Mariposa County, California, USAi
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Latitude & Longitude (WGS84):
37° 41' 51'' North , 120° 13' 14'' West
Latitude & Longitude (decimal):
Type:
Köppen climate type:
Nearest Settlements:
| Place | Population | Distance |
|---|---|---|
| Coulterville | 201 (2011) | 2.5km |
| Greeley Hill | 915 (2011) | 9.5km |
| Groveland | 601 (2011) | 15.7km |
| Bear Valley | 125 (2011) | 16.8km |
| Chinese Camp | 126 (2011) | 26.9km |
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 |
|---|---|---|
| Mariposa Gem & Mineral Club | Mariposa, California | 33km |
| Calaveras Gem & Mineral Society | Angels Camp, California | 50km |
A former lode Au mine located in secs. 4, 5, 8 & 9, T3S, R16E, MDM, 2.5 km (8,300 feet) SW of Coulterville, at the northern tip of Horseshoe Bend Mountain, on private (patented) land. Operated during the period 1900 to 1902 by Frank A. Smith, C/O Mrs. Carol B. Shultis. Property consists of 59.44 acres of patented land. MRDS database stated accuracy for this location is 500 meters.
Mineralizationm is a vein deposit hosted in Late Jurassic greenstone and volcanic rock (aphanitic). The ore body strikes NW and dips NE. The country rocks are massive greenstone & volcanics of the Upper Jurassic Penon Blanco. Local rocks include Mesozoic volcanic rocks, unit 2 (Western Sierra Foothills and Western Klamath Mountains) and/or Jurassic marine rocks, unit 1 (Western Sierra Nevada and Western Klamath Mountains).
Workings include underground openings comprised of several tunnels, all in need of cleaning out.
Production data are found in: Bowen, O.E., Jr. & C.H. Gray, Jr. (1957).
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: | 10030857 |
|---|
Other Regions, Features and Areas containing this locality
North AmericaContinent
North America PlateTectonic Plate
- Foothills-Wallowa DomainDomain
- Sierra Nevada BatholithVolcanic Arc
USA
- California
- Mother Lode BeltBelt
- Sierra NevadaMountain Range
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References
(n.d.) Minerals Availability System (MAS), U.S. Bureau of Mines.file ID #0060430071
