McNamara Mine (McNamara property), Camp Pardee, Pardee Mining District, Calaveras County, California, USAi
| Regional Level Types | |
|---|---|
| McNamara Mine (McNamara property) | Mine |
| Camp Pardee | - not defined - |
| Pardee Mining District | Mining District |
| Calaveras County | County |
| California | State |
| USA | Country |
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Latitude & Longitude (WGS84):
38° 14' 23'' North , 120° 47' 22'' West
Latitude & Longitude (decimal):
Type:
Köppen climate type:
Nearest Settlements:
| Place | Population | Distance |
|---|---|---|
| Valley Springs | 3,553 (2011) | 6.4km |
| Mokelumne Hill | 646 (2011) | 9.9km |
| San Andreas | 2,783 (2011) | 10.7km |
| Jackson | 4,649 (2017) | 12.2km |
| Buena Vista | 429 (2011) | 12.4km |
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 |
|---|---|---|
| Amador County Gem & Mineral Society | Sutter Creek, California | 17km |
| Calaveras Gem & Mineral Society | Angels Camp, California | 29km |
Mindat Locality ID:
75592
Long-form identifier:
mindat:1:2:75592:7
GUID (UUID V4):
f674266e-018e-4c37-9d4a-a3f17d66fee8
A former Cr mine located in the SW¼ sec. 32, T5N, R11E, MDM, 4.8 km (3 miles) W of Camp Pardee. MRDS database stated accuracy for this location is 100 meters.
Mineralization is a small, detached serpentine lens containing high-grade, disseminated and massive chromite. Local rocks include ultramafic rocks, chiefly Mesozoic, unit 2 (Western Sierra Nevada and Klamath Mountains) and/or Jurassic marine rocks, unit 1 (Western Sierra Nevada and Western Klamath Mountains).
Workings include underground openings.
Production data: 6 tons of ore mined in 1942. About 1 ton of ore was mined in 1918 from a small pit 400 feet S of this deposit.
The ore contained 43.02% of Cr2O3.
Select Mineral List Type
Standard Detailed Gallery Strunz Chemical ElementsDetailed Mineral List:
| ⓘ Formula: Fe2+Cr3+2O4 |
| ⓘ Magnesiochromite Formula: MgCr2O4 |
| ⓘ 'Serpentine Subgroup' Formula: D3[Si2O5](OH)4 |
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 |
| Unclassified | |||
| ⓘ | 'Serpentine Subgroup' | - | D3[Si2O5](OH)4 |
List of minerals for each chemical element
| H | Hydrogen | |
|---|---|---|
| H | ⓘ Serpentine Subgroup | D3[Si2O5](OH)4 |
| O | Oxygen | |
| O | ⓘ Chromite | Fe2+Cr23+O4 |
| O | ⓘ Magnesiochromite | MgCr2O4 |
| O | ⓘ Serpentine Subgroup | D3[Si2O5](OH)4 |
| Mg | Magnesium | |
| Mg | ⓘ Magnesiochromite | MgCr2O4 |
| Si | Silicon | |
| Si | ⓘ Serpentine Subgroup | D3[Si2O5](OH)4 |
| Cr | Chromium | |
| Cr | ⓘ Chromite | Fe2+Cr23+O4 |
| Cr | ⓘ Magnesiochromite | MgCr2O4 |
| Fe | Iron | |
| Fe | ⓘ Chromite | Fe2+Cr23+O4 |
Other Databases
| Link to USGS MRDS: | 10028749 |
|---|
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References
