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Mine detail: Pilot Knob Perlite
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North America
United States
California
San Bernardino
Previously called 'Pilot Knob'
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Location
Lat / long:
35.44109, -117.25399
Resource(N)
Primary:
Perlite
Production
Operation type:
Unknown
Development status:
Occurrence
Geology
References
MAS
60710478
DEP
10286131
Reference
CALIF. JOUR. MINES AND GEOL., V. 49, 1953, P. 188-189.
Reporter
Ridenour, James