Latitude & Longitude (WGS84):
39° 7' 47'' North , 120° 46' 46'' West
Latitude & Longitude (decimal):
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Long-form identifier:
mindat:1:2:85218:7
A former Cr occurrence/mine located in the center of sec. 19 and in secs. 29, 31 & 32, T15N, R11E, MDM, 1.2 km (0.7 mile) ESE of the Sugar Pine Reservoir (coordinates of record), N of Sugar Pine Road. Mineral rights owned by the Capital Company (1949). MRDS database stated accuracy for this location is 1,000 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."
This deposit occurs in the easternmost of 3 sub-parallel belts of ultramafic rocks that trend northward across Placer County. Local rocks include ultramafic rocks, chiefly Mesozoic, unit 2 (Western Sierra Nevada and Klamath Mountains).
Production data are found in: Rynearson, Garn Arthur (1953), page 200.
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1 valid mineral.
Gallery:
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
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To cite: Ralph, J., Von Bargen, D., Martynov, P., Zhang, J., Que, X., Prabhu, A., Morrison, S. M., Li, W., Chen, W., & Ma, X. (2025). Mindat.org: The open access mineralogy database to accelerate data-intensive geoscience research. American Mineralogist, 110(6), 833–844.
doi:10.2138/am-2024-9486.
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