Mine detail: North Star Tun. and Dev. Co.

Previously called 'North Star Shaft'

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Location

Lat / long:

38.07244, -117.21258

Resource(M)

Primary:	Silver
Secondary:	Gold
Tertiary:	Copper
Ore:	Polybasite
Gangue:	Pyrite

Production

Operation type:	Unknown
Production size:	Medium
Development status:	Past Producer

Geology

Host rock:	Mizpah Trachyte;Tonopah Formation
Host type:	Clastic Sedimentary Rock,Andesite
Structure:	Mizpah Fault
Alteration processes:	Andesite Altered To Chlorite And Calcite. Silicification

References

MRDS	M231776
DEP	10044370
Reference	{Deposit:: SPURR, J.E., 1905, GEOLOGY OF THE TONOPAH MINING DISTRICT: USGS PROF. PAPER 42, P. 177-178}{Deposit:: CARPENTER, JA, ET AL, HISTORY OF FIFTY YEARS OF MINING AT TONOPAH: NBMG BULL. 51}{Deposit:: NOLAN, TB, 1935, UNDERGROUND GEOL. OF TONOPAH MIN. DIST.: NBMG BULL. 23}{Production:: CARPENTER, 1953, P. 149}
Reporter	Wong, George (Roberts, Ralph), La Pointe, D.D. (Tingley, J.V.)