Washington Mine (Red Cloud Mine; Johnny Lind Mine; Jenny Lind Mine), Hornitos, Hornitos Mining District, West Belt, Mariposa County, California, USAi
Regional Level Types | |
---|---|
Washington Mine (Red Cloud Mine; Johnny Lind Mine; Jenny Lind Mine) | Mine |
Hornitos | - not defined - |
Hornitos Mining District | Mining District |
West Belt | - not defined - |
Mariposa County | County |
California | State |
USA | Country |
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Latitude & Longitude (WGS84):
37° 31' 35'' North , 120° 13' 25'' West
Latitude & Longitude (decimal):
Type:
KΓΆppen climate type:
Nearest Settlements:
Place | Population | Distance |
---|---|---|
Bear Valley | 125 (2011) | 10.3km |
Catheys Valley | 825 (2011) | 15.2km |
Snelling | 231 (2011) | 18.9km |
Coulterville | 201 (2011) | 20.6km |
Mariposa | 2,173 (2017) | 23.2km |
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 |
---|---|---|
Mariposa Gem & Mineral Club | Mariposa, California | 23km |
Mindat Locality ID:
82651
Long-form identifier:
mindat:1:2:82651:7
GUID (UUID V4):
73888866-839b-4c51-841c-de893f7012c8
A former Au-Pb-Ag-Cu mine located in secs. 4 & 5, T5S, R16E, MDM, 2.9 km (9,600 feet) NNE of Hornitos and 1.6 km (5,400 feet) WSW of Quartzburg school, in the general vicinity of the former town of Quartzburg, on private (patented) land. Discovered in 1850. Operated by the Pacific Mining Co. MRDS database stated accuracy for this location is 500 meters.
Mineralization is a vein deposit with a vein 6 to 8 feet thick, hosted in schist, hornfels, and volcanic rock (aphanitic), also as masses of wall rock impregnated with auriferous pyrite running 0.09 ounces Au/ton. The ore body strikes N40W and dips 70-75SW at a thickness of 3.66 meters. Wall rocks are mainly micaceous and amphibole-bearing schists and dark quartz-biotite hornfelses of Upper Jurassic age. The vein is accompanied by a light-colored felsitic dike which adjoins the vein on the footwall side in the SE workings and on the hanging wall side in the NW workings. Small, irregular intrusions of hornblenditic granitic rock penetrate to the surface. Much of the metamorphic rock has been derived from platy, tuffaceous metasediments. An associated rock is Late Jurassic hornblendite. Local rocks include Jurassic marine rocks, unit 1 (Western Sierra Nevada and Western Klamath Mountains).
Workings include underground openings with a length of 3,218.6 meters and an overall depth of 457.2 meters and comprised of 4 shafts, extensive drifting and stopes.
Production data are found in: Bowen & Gray (1957).
In 1851, a 6-stamp stamp mill produced 1,000 ounces Au/day. Some Bonanza ore, but recent production from ore has yielded between $6.50 to $7.00 Au/ton (period values). Ore averaging $25.00 Au per ton (period values = $13/ounce in middle 1870's).
Assay analyeses results: Year: 1942: Pb = ^0.064 pounds/ton (29 grams/metric ton); Ag = ^0.14 ounce Ag/ton (4 grams/metric ton).
Select Mineral List Type
Standard Detailed Gallery Strunz Chemical ElementsDetailed Mineral List:
β Ankerite Formula: Ca(Fe2+,Mg)(CO3)2 |
β Chalcopyrite Formula: CuFeS2 |
β Galena Formula: PbS |
β Gold Formula: Au |
β Pyrargyrite Formula: Ag3SbS3 References: |
β Pyrite Formula: FeS2 |
β Quartz Formula: SiO2 |
Gallery:
List of minerals arranged by Strunz 10th Edition classification
Group 1 - Elements | |||
---|---|---|---|
β | Gold | 1.AA.05 | Au |
Group 2 - Sulphides and Sulfosalts | |||
β | Chalcopyrite | 2.CB.10a | CuFeS2 |
β | Galena | 2.CD.10 | PbS |
β | Pyrite | 2.EB.05a | FeS2 |
β | Pyrargyrite | 2.GA.05 | Ag3SbS3 |
Group 4 - Oxides and Hydroxides | |||
β | Quartz | 4.DA.05 | SiO2 |
Group 5 - Nitrates and Carbonates | |||
β | Ankerite | 5.AB.10 | Ca(Fe2+,Mg)(CO3)2 |
List of minerals for each chemical element
C | Carbon | |
---|---|---|
C | β Ankerite | Ca(Fe2+,Mg)(CO3)2 |
O | Oxygen | |
O | β Ankerite | Ca(Fe2+,Mg)(CO3)2 |
O | β Quartz | SiO2 |
Mg | Magnesium | |
Mg | β Ankerite | Ca(Fe2+,Mg)(CO3)2 |
Si | Silicon | |
Si | β Quartz | SiO2 |
S | Sulfur | |
S | β Chalcopyrite | CuFeS2 |
S | β Galena | PbS |
S | β Pyrargyrite | Ag3SbS3 |
S | β Pyrite | FeS2 |
Ca | Calcium | |
Ca | β Ankerite | Ca(Fe2+,Mg)(CO3)2 |
Fe | Iron | |
Fe | β Ankerite | Ca(Fe2+,Mg)(CO3)2 |
Fe | β Chalcopyrite | CuFeS2 |
Fe | β Pyrite | FeS2 |
Cu | Copper | |
Cu | β Chalcopyrite | CuFeS2 |
Ag | Silver | |
Ag | β Pyrargyrite | Ag3SbS3 |
Sb | Antimony | |
Sb | β Pyrargyrite | Ag3SbS3 |
Au | Gold | |
Au | β Gold | Au |
Pb | Lead | |
Pb | β Galena | PbS |
Other Databases
Link to USGS MRDS: | 10163582 |
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Other Regions, Features and Areas containing this locality
North America PlateTectonic Plate
- Foothills-Wallowa DomainDomain
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 #0060430173