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Black Crow No. 1 claim [?], Black Crow No. 1 and Black Crow No. 2 claims, Boulder Peak, Altoona District, Trinity Mts, Klamath Mts, Trinity Co., California, USA



Detailed Mineral List:
Chromite
Formula: Fe(Cr,Al,Fe)2O4
Reference: U.S. Geological Survey, 2005, Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia.


1 entry listed. 1 valid mineral.

References

Averill, Charles V. (1941), Mineral resources of Trinity County: California Journal of Mines and Geology, California Division Mines (Report 37): 37(1): 17.

USGS (2005), Mineral Resources Data System (MRDS): U.S. Geological Survey, Reston, Virginia, loc. file ID #10043522 & 10117796.

U.S. Bureau of Mines, Minerals Availability System (MAS) file ID #0061050092.

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