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Mine detail: Fortner Ranch Prospect
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North America
United States
California
Calaveras
Previously called ''
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Location
Lat / long:
38.22574, -120.66407
Resource(M)
Tertiary:
Manganese
Ore:
Psilomelane, Pyrolusite, Spessartite
Production
Operation type:
Unknown
Production size:
None
Development status:
Occurrence
Geology
References
MRDS
M006074
DEP
10028845
Reference
{Deposit:: CALIF. B. 152, P. 42-43; B. 125, P. 106; B.76, P.31}{Deposit:: EC MINERAL MAP NO.5, 1943}{Deposit:: USBM R.I. 5579, P.22}{Deposit:: REPT. 21 , P. 163 ; COUNTY REPT. NO. 2 , P. 212 AND PL. D; USGS MR-23}
Reporter
Gere, W., Von Dohlen, E.; Albers, J.