Buckhorn claim (Wildboar claim), Marsh Flats Chrome Associates properties, Moccasin Peak area, Tuolumne County, California, USAi
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Latitude & Longitude (WGS84):
37° 48' 55'' North , 120° 22' 39'' West
Latitude & Longitude (decimal):
Type:
Köppen climate type:
Nearest Settlements:
| Place | Population | Distance |
|---|---|---|
| Chinese Camp | 126 (2011) | 7.9km |
| Groveland | 601 (2011) | 13.0km |
| Jamestown | 3,433 (2011) | 15.8km |
| East Sonora | 2,266 (2011) | 18.1km |
| Sonora | 4,818 (2017) | 18.8km |
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 |
|---|---|---|
| Calaveras Gem & Mineral Society | Angels Camp, California | 32km |
A Cr occurrence/claim located in sec. 25 & in the NE¼ & SE¼ sec. 36, T1S, R14E, MDM, 4.5 km (2.8 miles) WNW of Moccasin Peak (coordinates of record) (near the head of Reservoir Gulch). Discovered in 1917 by George Adams and C.F. Lighthold. MRDS database accuracy for this location is not stated.
Mineralization is hosted in Late Jurassic dunite. The ore body is podiform. There is extensive shearing in and around the ore bodies. The deposit occurs in the northern part of the western part of 2 serpentine belts which trend NW-SE across the county. The belt is exposed over an area 30 km by 6 km. Local rocks include ultramafic rocks, chiefly Mesozoic, unit 2 (Western Sierra Nevada and Klamath Mountains).
Workings include surface openings comprised of 6 or 7 small pits and open cuts. Most of the ore was removed from 3 open cuts 100 feet W of the bottom of the gulch (now inundated beneath Don Pedro Reservoir).
Production information: Approximately 40 tons of ore were mined in 1917-1918 and remain stockpiled on the claim (1948).
Select Mineral List Type
Standard Detailed Gallery Strunz Chemical ElementsDetailed Mineral List:
| ⓘ Formula: Fe2+Cr3+2O4 |
| ⓘ Magnesiochromite Formula: MgCr2O4 |
| ⓘ Uvarovite Formula: Ca3Cr2(SiO4)3 Description: Occurs as large, well-formed crystals. |
Gallery:
List of minerals arranged by Strunz 10th Edition classification
| Group 4 - Oxides and Hydroxides | |||
|---|---|---|---|
| ⓘ | Chromite ? | 4.BB.05 | Fe2+Cr3+2O4 |
| ⓘ | Magnesiochromite | 4.BB.05 | MgCr2O4 |
| Group 9 - Silicates | |||
| ⓘ | Uvarovite | 9.AD.25 | Ca3Cr2(SiO4)3 |
List of minerals for each chemical element
| O | Oxygen | |
|---|---|---|
| O | ⓘ Chromite | Fe2+Cr23+O4 |
| O | ⓘ Magnesiochromite | MgCr2O4 |
| O | ⓘ Uvarovite | Ca3Cr2(SiO4)3 |
| Mg | Magnesium | |
| Mg | ⓘ Magnesiochromite | MgCr2O4 |
| Si | Silicon | |
| Si | ⓘ Uvarovite | Ca3Cr2(SiO4)3 |
| Ca | Calcium | |
| Ca | ⓘ Uvarovite | Ca3Cr2(SiO4)3 |
| Cr | Chromium | |
| Cr | ⓘ Chromite | Fe2+Cr23+O4 |
| Cr | ⓘ Magnesiochromite | MgCr2O4 |
| Cr | ⓘ Uvarovite | Ca3Cr2(SiO4)3 |
| Fe | Iron | |
| Fe | ⓘ Chromite | Fe2+Cr23+O4 |
Other Databases
| Link to USGS MRDS: | 10095694 |
|---|
Other Regions, Features and Areas containing this locality
North AmericaContinent
North America PlateTectonic Plate
- Calaveras-Baker DomainDomain
- Sierra Nevada BatholithVolcanic Arc
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 #0061090104
