Long Pit & Yellow Pit deposits (Long pit; Yellow pit deposits), Hughes Mill, Forest Hill Divide area, Placer County, California, USAi
Regional Level Types | |
---|---|
Long Pit & Yellow Pit deposits (Long pit; Yellow pit deposits) | Group of Deposits |
Hughes Mill | - not defined - |
Forest Hill Divide area | Area |
Placer County | County |
California | State |
USA | Country |
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Latitude & Longitude (WGS84):
39° 6' 38'' North , 120° 45' 18'' West
Latitude & Longitude (decimal):
Type:
Group of Deposits
Köppen climate type:
Nearest Settlements:
Place | Population | Distance |
---|---|---|
Foresthill | 1,483 (2011) | 11.4km |
Alta | 610 (2011) | 11.7km |
Dutch Flat | 160 (2011) | 12.8km |
Colfax | 2,005 (2017) | 17.1km |
Georgetown | 2,367 (2011) | 23.8km |
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 |
---|---|---|
Nevada County Gem & Mineral Society | Grass Valley, California | 29km |
El Dorado County Mineral and Gem Society | Placerville, California | 43km |
Gold Country Treasure Seekers | Placerville, California | 43km |
Mindat Locality ID:
85530
Long-form identifier:
mindat:1:2:85530:6
GUID (UUID V4):
1470913a-5668-460e-be66-f09458eace24
A former Cr occurrence/mine located in the SE¼ sec. 29, T15N, R11E, MDM, about 3.3 km NNE of Hughes Mill, W of Sugar Pine Canyon, on private land within a National Forest area. Owned by the Capital Company (mineral rights) (1949). MRDS database stated accuracy for this location is 500 meters.
This is one of many Cr deposits/mines placed into a very large area termed the "Forest Hill Divide area" by Rynearson. That area is based on geological and topographic considerations versus mining districts and overlaps several defined districts. Those Cr occurrences within mining districts are listed under their respective districts, the remainder are listed under Rynearson’s "Forest Hill Divide area."
Mineralization is hosted in serpentinite. The ore body is lenticular in form. The Long pit ore body is a lens 2 feet wide and 8 feet long. The Yellow pit ore was friable and lump chromite. Local rocks include ultramafic rocks, chiefly Mesozoic, unit 2 (Western Sierra Nevada and Klamath Mountains).
Workings include unspecified surface openings (presumably pits).
Production data are found in: Rynearson, Garn Arthur (1953).
Select Mineral List Type
Standard Detailed Gallery Strunz Chemical ElementsGallery:
List of minerals arranged by Strunz 10th Edition classification
Group 4 - Oxides and Hydroxides | |||
---|---|---|---|
ⓘ | Chromite | 4.BB.05 | Fe2+Cr3+2O4 |
List of minerals for each chemical element
O | Oxygen | |
---|---|---|
O | ⓘ Chromite | Fe2+Cr23+O4 |
Cr | Chromium | |
Cr | ⓘ Chromite | Fe2+Cr23+O4 |
Fe | Iron | |
Fe | ⓘ Chromite | Fe2+Cr23+O4 |
Other Databases
Link to USGS MRDS: | 10110868 |
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