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Mine detail: Helman
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North America
United States
California
Los Angeles
Previously called ''
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Location
Lat / long:
34.6747, -118.46761
Resource(N)
Primary:
Graphite
Production
Operation type:
Unknown
Development status:
Occurrence
Geology
References
MAS
60370373
DEP
10236535
Reference
CALIF. JOUR. MINES AND GEOL., V. 50, 1954, P. 668.
Reporter
Ridenour, James