Leach Mine, Quartz Mountain [1], East Belt, Mariposa County, California, USAi
| Regional Level Types | |
|---|---|
| Leach Mine | Mine |
| Quartz Mountain [1] | Mountain |
| East Belt | - not defined - |
| Mariposa County | County |
| California | State |
| USA | Country |
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Latitude & Longitude (WGS84):
37° 37' 40'' North , 119° 59' 5'' West
Latitude & Longitude (decimal):
Type:
Köppen climate type:
Nearest Settlements:
| Place | Population | Distance |
|---|---|---|
| Midpines | 1,204 (2011) | 10.9km |
| Bear Valley | 125 (2011) | 13.5km |
| Mariposa | 2,173 (2017) | 16.0km |
| Greeley Hill | 915 (2011) | 18.2km |
| El Portal | 474 (2011) | 18.4km |
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 | 16km |
A former lode Au-Cu mine located in the SE¼ sec. 33, T3S, R18E, MDM, 5.3 km (3.3 miles) E of Quartz Mountain [1] (1½ miles NW of Briceburg and about 1 mile by unimproved road from the graded Briceburg-Kinsley Road). Discovered in 1900. Operated during the period 1900 to 1905. Operated by M. Van De Carr. MRDS database accuracy for this location is not stated.
Mineralization is a vein deposit with a vein 1 to 3 feet thick. The ore body strikes N25W and dips 75-80E at a thickness of 0.91 meter. The ore occurs partly in ribboned quartz, partly in altered dike material, and partly in altered wall rock next to the vein. The vein is accompanied over much of its strike length by a fine-grained, light green granitic dike. Local rocks include Paleozoic marine rocks, undivided, unit 4 (Western Sierra Nevada).
Workings include underground openings witha total length of 106.68 meters and an overall depth of 15.24 meters. They are comprised of an inclined shaft about 50 feet deep with drifts and stopes aggregating 300-350 feet. An older crosscut tunnel, about 60 feet long, has extensive drifts at the end, which apparently connect with the main workings from the shaft.
Production data are found in: Bowen, O.E., Jr. & C.H. Gray, Jr. (1957).
First worked about 1900-1905 by Bell, Leach, and Charles Hartley. Present owner works the mine intermittently. No other production record was found.
Select Mineral List Type
Standard Detailed Gallery Strunz Chemical ElementsDetailed Mineral List:
| ⓘ Chalcopyrite Formula: CuFeS2 |
| ⓘ Native Gold Formula: Au |
| ⓘ Pyrite Formula: FeS2 |
| ⓘ Quartz Formula: SiO2 |
Gallery:
List of minerals arranged by Strunz 10th Edition classification
| Group 1 - Elements | |||
|---|---|---|---|
| ⓘ | Native Gold | 1.AA.05 | Au |
| Group 2 - Sulphides and Sulfosalts | |||
| ⓘ | Chalcopyrite | 2.CB.10a | CuFeS2 |
| ⓘ | 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 | ⓘ Pyrite | FeS2 |
| Fe | Iron | |
| Fe | ⓘ Chalcopyrite | CuFeS2 |
| Fe | ⓘ Pyrite | FeS2 |
| Cu | Copper | |
| Cu | ⓘ Chalcopyrite | CuFeS2 |
| Au | Gold | |
| Au | ⓘ Native Gold | Au |
Other Databases
| Link to USGS MRDS: | 10031088 |
|---|
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
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