Black Rock Chrome

Past Producer in Placer county in California, United States with commodity Chromium

Geologic information

Identification information

Deposit ID	10139697
MRDS ID	W024364
MAS/MILS ID	0060610261
Record type	Site
Current site name	Black Rock Chrome
Related records	10077014

Geographic coordinates

Point of reference	Trench
Geographic coordinates:	-120.79492, 39.00299 (WGS84)
Elevation	512
Location accuracy	500(meters)
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Geographic areas

Country	State	County
United States	California	Placer

Public Land Survey System information

Meridian	Township	Range	Section	Fraction	State
Mount Diablo	013 N	011 E	06	NW	California

Commodities

Commodity	Importance
Chromium	Primary

Nearby scientific data

Trench (1)	-120.79492, 39.00299	ListMap

Economic information

Economic information about the deposit and operations

Operation type	Surface
Development status	Past Producer
Commodity type	Metallic
Deposit size	Small
Significant	No

Land status

Ownership category	Unknown

Reference information

Links to other databases

Agency	Database name	Acronym	Record ID	Notes
U.S. Bureau of Mines	Minerals Availability System	MAS	0060610261
USGS	Mineral Resources Data System	MRDS	W024364	MAS references MRDS

Bibliographic references

Deposit

DOM SR-67,PL 3;BULL 134,PT 3,CH 5,P 200,228,PL 13

Reporter information

Type	Date	Name	Affiliation	Comment
Reporter	04-NOV-1983	Western Field Operations Center (WFOC)	U.S. Bureau of Mines