Mine detail: Nevada-Massachusettes Mine

Previously called 'Humbolt-SpringerHumbolt Mine'

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Location

Lat / long:

40.78156, -118.1332

Resource(M)

Primary:	Tungsten
Tertiary:	Silver, Gold
Ore:	Scheelite
Gangue:	Epidote, Garnet, Pyrite, Quartz

Production

Operation type:	Unknown
Deposit type:	Vein
Production size:	Large
Development status:	Producer

Geology

Host type:	Hornfels,Limestone
Associated type:	Diorite,Andesite
Structure:	Basin And Range Fault Block, Faults, Stock And Dike Intrusions., Stank Fault Strikes N-S For 1.5 Miles. Strata West Side Of Fault Dips East, East Side Of Fault Dips 70 West. Strata Strikes N20e. Post-Mineral Faults Also Present.
Alteration processes:	Silicification, Albitization

References

MRDS	M060313
DEP	10042502
Reference	KERR, P.F., 1934, GEOLOGY OF THE TUNGSTEN DEPOSITS NEAR MILL CITY, NEVADA, U. OF NEV. BULL., VOL 88, NO. 2
Reporter	Johnson, M