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Mine detail: Crystal Graphite Mine
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North America
United States
Montana
Beaverhead
Previously called ''
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Location
Lat / long:
45.10268, -112.50587
Resource(N)
Primary:
Graphite
Ore:
Graphite
Orebody form:
PINCH AND SWELL, BUNCHES, POCKETS
Discovery year:
1899
Production
Operation type:
Unknown
Production size:
Yes
Development status:
Past Producer
First production started:
1902
Geology
Host rock:
Pre Belt
Host type:
Gneiss
Associated type:
Diabase,Pegmatite,Granite
Structure:
Foliation Trends Generally Ne And Dips Nw. Tight Isoclinal Folds
References
MRDS
W013440
DEP
10070489
Reference
{Deposit:: MBMG BULL 85.}{Deposit:: USGS BULL 574, P. 105-110.}{Deposit:: 1914 COMPILE WINCHELL, A.N., U.S.G.S. BULL. 574}{Deposit:: 1972 COMPILE M.B.M.G. BULL. 85}{Production:: GEACH, 1972, MBMG BULL 85.}
Reporter
Mlynarczyk, Meg S.; Krohn, D., Loen, Jeffrey S. (Pearson, Robert C.)