Last Chance Mine, Original Amador Mine (Eclipse Mine; Little Amador Mine; Original Amador claim; East Amador claim; Amador Wedge claim; Great Eastern claim; Eclipse Extension claim; Last Chance claim), Amador City, Jackson-Plymouth Mining District, Amador County, California, USAi
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Latitude & Longitude (WGS84):
38° 25' 26'' North , 120° 49' 26'' West
Latitude & Longitude (decimal):
Type:
Köppen climate type:
Nearest Settlements:
| Place | Population | Distance |
|---|---|---|
| Amador City | 189 (2017) | 0.5km |
| Drytown | 167 (2011) | 3.3km |
| Sutter Creek | 2,488 (2017) | 3.9km |
| Plymouth | 960 (2017) | 6.7km |
| Martell | 282 (2011) | 6.8km |
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 |
|---|---|---|
| Amador County Gem & Mineral Society | Sutter Creek, California | 4km |
| El Dorado County Mineral and Gem Society | Placerville, California | 34km |
| Gold Country Treasure Seekers | Placerville, California | 34km |
| Calaveras Gem & Mineral Society | Angels Camp, California | 47km |
A Au occurrence/claim/mine located in the NW¼NE¼ sec. 36, T7N, R10E, MDM, 0.5 km (0.3 mile) N of Amador City (just outside the northern city limit; adjoins the Eclipse Mine on the N), on private land. Operated by J. W. Bullock C/O C. E. Crandall. MRDS database stated accuracy for this location is 500 meters. One of the claims consolidated with the Original Amador.
Mineralization is a quartz vein deposit hosted in slate. This claim lies entirely in slate where a well-defined quartz vein or ledge was discovered down to 240 feet. Local rocks include Jurassic marine rocks, unit 1 (Western Sierra Nevada and Western Klamath Mountains).
Workings include underground openings with an overall depth of 73.15 meters and comprised of a 240 foot shaft (1890).
Select Mineral List Type
Standard Detailed Gallery Strunz Chemical ElementsDetailed Mineral List:
| ⓘ Native Gold Formula: Au |
Gallery:
List of minerals arranged by Strunz 10th Edition classification
| Group 1 - Elements | |||
|---|---|---|---|
| ⓘ | Native Gold | 1.AA.05 | Au |
List of minerals for each chemical element
| Au | Gold | |
|---|---|---|
| Au | ⓘ Native Gold | Au |
Other Databases
| Link to USGS MRDS: | 10028118 |
|---|
Other Regions, Features and Areas containing this locality
North AmericaContinent
North America PlateTectonic Plate
- Calaveras-Baker DomainDomain
- Sierra Nevada BatholithVolcanic Arc
USA
- California
- Amador County
- Mother Lode BeltBelt
- Mother Lode BeltBelt
- Amador County
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References
(n.d.) Minerals Availability System (MAS), U.S. Bureau of Mines.file #0060050143
