Lightner Mine (Libbie & Welch; Welch & Star), Lightner Peak, Foothill Copper Belt, Calaveras County, California, USAi
| Regional Level Types | |
|---|---|
| Lightner Mine (Libbie & Welch; Welch & Star) | Mine |
| Lightner Peak | Peak |
| Foothill Copper Belt | Belt |
| Calaveras County | County |
| California | State |
| USA | Country |
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Latitude & Longitude (WGS84):
37° 56' 38'' North , 120° 35' 35'' West
Latitude & Longitude (decimal):
Type:
Köppen climate type:
Nearest Settlements:
| Place | Population | Distance |
|---|---|---|
| Copperopolis | 3,671 (2011) | 5.9km |
| Tuttletown | 668 (2011) | 12.8km |
| Angels Camp | 2,677 (2012) | 14.6km |
| Jamestown | 3,433 (2011) | 15.0km |
| Chinese Camp | 126 (2011) | 16.2km |
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 |
|---|---|---|
| Calaveras Gem & Mineral Society | Angels Camp, California | 15km |
| Mother Lode Mineral Society | Modesto, California | 49km |
A Cu-Au occurrence/mine located in sec. 18, T1N, R13E, MDM, 0.5 km (0.3 mile) WSW of Lightner Peak (coordinates of record) (3 miles SE of Copperopolis). MRDS database stated accuracy for this location is 100 meters.
Mineralization is hosted in greenschist. The ore body is lenticular in form, strikes N45W and dips NE at a thickness of 6.1 meters. Sulfide lenses occur at 12 to 20 feet thick. Capped by gossan. Local rocks include Mesozoic volcanic rocks, unit 2 (Western Sierra Foothills and Western Klamath Mountains).
Workings include underground openings comprised of an open 150 foot inclined shaft and a 250 foot crosscut adit on the 90 foot level. Two other shafts are located to the SW. The dump is large.
No production reported.
List of minerals for each chemical element
Other Databases
| Link to USGS MRDS: | 10028951 |
|---|
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
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References
(n.d.) Minerals Availability System (MAS), U.S. Bureau of Mines.file ID #0060090752
Bramel, Hadley R., Heyl, George R., Cox, Manning W., Ransome, Alfred L., Eric, John H., Wyant, Donald G. (1948) Copper in California. Bulletin 144. California State Mining Bureau p.221
