Green Monster Mine (Copper Queen Mine; Copper Mountain Mine; Legioneer Mine), Green Mountain, Green Mountain Mining District (Ben Hur Mining District), Mariposa County, California, USAi
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Latitude & Longitude (WGS84):
37° 15' 17'' North , 119° 59' 16'' West
Latitude & Longitude (decimal):
Type:
Köppen climate type:
Nearest Settlements:
| Place | Population | Distance |
|---|---|---|
| Yosemite Lakes | 4,952 (2011) | 20.3km |
| Catheys Valley | 825 (2011) | 22.0km |
| Le Grand | 1,659 (2011) | 23.2km |
| Bootjack | 960 (2011) | 25.0km |
| Coarsegold | 1,840 (2011) | 25.4km |
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 | 26km |
A former Cu-Co mine located in secs. 3 & 10, T8S, R18E, MDM, 1.1 km (3,600 feet) SSE of Copper Mountain (coordinates of record) (2 miles NW of the Green Mountain school). Discovered in 1861. Operated during the period 1903-1904. Property consisted of 11 unpatented claims and 2 patented claims (see below for names). Operated by Dr. Felix A. Smith and Marie D. Kellogg. MRDS database stated accuracy for this location is 1,000 meters.
The present group includes 11 unpatented claims, the Amador, Copper Chief, Copper King, Copper Mountain, Copper Peak, Discovery, San Francisco (Frisco claim), Green Mountain, Juliet and Last Chance. The 2 patented claims are the Copper Queen and Buena Vista. Dr. Smith owns all the unpatented claims and ½ interest in those patented.
Mineralization is hosted in schist. The deposit consistsn of pyrrhotite-chalcopyrite ore bodies in sericite schist between granodiorite on the E and diorite on the W. The ore body strikes NE and dips SW at a width of 18.29 meters. Controls for ore emplacement included shear zones. The schist is cut by dikes and irregular intrusions of granitic rocks. Ore in the upper or oxidized portions of the shoots contain various ore minerals. The primary ores in the lower portions of the shoots ar made up chiefly of chalcopyrite and pyrrhotite. Granite is an associated rock. Local rocks include Mesozoic granitic rocks, unit 3 (Sierra Nevada, Death Valley area, Northern Mojave Desert and Transverse Ranges) and/or Jurassic marine rocks, unit 1 (Western Sierra Nevada and Western Klamath Mountains).
Workings include underground openings with a total length of 1,219.2 meters and are comprised of more than 4,000 feet of underground workings including numerous workings to the surface.
In 1904, the ore mined was running more than 6 weight percent Cu. Production figures represent amount and type of ore shipped during early 1900's, but not the only shipments made.
Past Cu production was between 100,000 and 1 million tons.
Analyses of up to 0.18% Co have been reported on samples.
(NOTE: Murdoch & Webb give a T&R value of sec. 19, T5S, R19E, MDM, which are older data).
Select Mineral List Type
Standard Detailed Gallery Strunz Chemical ElementsDetailed Mineral List:
| ⓘ Azurite Formula: Cu3(CO3)2(OH)2 References: |
| ⓘ Chalcocite Formula: Cu2S |
| ⓘ Chalcopyrite Formula: CuFeS2 Description: Comprises the lower parts of the ore shoots along with pyrrhotite and pyrite.Occurs in the lower portions of ore shoots. |
| ⓘ Cobaltite Formula: CoAsS |
| ⓘ Cuprite Formula: Cu2O References: |
| ⓘ Malachite Formula: Cu2(CO3)(OH)2 |
| ⓘ Native Copper Formula: Cu Description: Occurs massive. |
| ⓘ Pyrite Formula: FeS2 Description: Occurs massive. |
| ⓘ Pyrrhotite Formula: Fe1-xS Description: Occurs in the lower portions of ore shoots. References: |
Gallery:
List of minerals arranged by Strunz 10th Edition classification
| Group 1 - Elements | |||
|---|---|---|---|
| ⓘ | Native Copper | 1.AA.05 | Cu |
| Group 2 - Sulphides and Sulfosalts | |||
| ⓘ | Chalcocite | 2.BA.05 | Cu2S |
| ⓘ | Chalcopyrite | 2.CB.10a | CuFeS2 |
| ⓘ | Pyrrhotite | 2.CC.10 | Fe1-xS |
| ⓘ | Pyrite | 2.EB.05a | FeS2 |
| ⓘ | Cobaltite | 2.EB.25 | CoAsS |
| Group 4 - Oxides and Hydroxides | |||
| ⓘ | Cuprite | 4.AA.10 | Cu2O |
| Group 5 - Nitrates and Carbonates | |||
| ⓘ | Azurite | 5.BA.05 | Cu3(CO3)2(OH)2 |
| ⓘ | Malachite | 5.BA.10 | Cu2(CO3)(OH)2 |
List of minerals for each chemical element
| H | Hydrogen | |
|---|---|---|
| H | ⓘ Azurite | Cu3(CO3)2(OH)2 |
| H | ⓘ Malachite | Cu2(CO3)(OH)2 |
| C | Carbon | |
| C | ⓘ Azurite | Cu3(CO3)2(OH)2 |
| C | ⓘ Malachite | Cu2(CO3)(OH)2 |
| O | Oxygen | |
| O | ⓘ Azurite | Cu3(CO3)2(OH)2 |
| O | ⓘ Cuprite | Cu2O |
| O | ⓘ Malachite | Cu2(CO3)(OH)2 |
| S | Sulfur | |
| S | ⓘ Chalcopyrite | CuFeS2 |
| S | ⓘ Chalcocite | Cu2S |
| S | ⓘ Cobaltite | CoAsS |
| S | ⓘ Pyrite | FeS2 |
| S | ⓘ Pyrrhotite | Fe1-xS |
| Fe | Iron | |
| Fe | ⓘ Chalcopyrite | CuFeS2 |
| Fe | ⓘ Pyrite | FeS2 |
| Fe | ⓘ Pyrrhotite | Fe1-xS |
| Co | Cobalt | |
| Co | ⓘ Cobaltite | CoAsS |
| Cu | Copper | |
| Cu | ⓘ Azurite | Cu3(CO3)2(OH)2 |
| Cu | ⓘ Chalcopyrite | CuFeS2 |
| Cu | ⓘ Chalcocite | Cu2S |
| Cu | ⓘ Cuprite | Cu2O |
| Cu | ⓘ Native Copper | Cu |
| Cu | ⓘ Malachite | Cu2(CO3)(OH)2 |
| As | Arsenic | |
| As | ⓘ Cobaltite | CoAsS |
Other Databases
| Link to USGS MRDS: | 10031197 |
|---|
Other Regions, Features and Areas containing this locality
North AmericaContinent
North America PlateTectonic Plate
- Foothills-Wallowa DomainDomain
- Sierra Nevada BatholithVolcanic Arc
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References
(n.d.) Minerals Availability System (MAS), U.S. Bureau of Mines.file ID #0060430558
Aubury, Lewis E. (1905) The Copper Resources of California. Bulletin 23. California State Mining Bureau pp.206-216
