Mine detail: Mac Namara Mining Co.

Previously called 'Mcnamara Shaft'

<< Back to the map

Location

Lat / long:

38.07022, -117.23425

Resource(M)

Primary:	Silver
Ore:	Argentite, Polybasite, Stephanite
Gangue:	Calcite, Pyrite, Quartz
Discovery year:	1901

Production

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

Geology

Host rock:	West End Rhyolite
Host type:	Rhyolite
Structure:	Macnamara Fault, Rainbow Fault
Alteration processes:	Rhyolite Altered To Chlorite, Calcite, Pyrite, Quartz, Sericite,Siderite.

References

MRDS	M231770
DEP	10044366
Reference	{Deposit:: SPURR, J.E., 1905, GEOLOGY OF THE TONOPAH MINING DISTRICT: USGS PROF. PAPER 42, P. 189-191}{Deposit:: CARPENTER, JA, ET AL, 1953, HISTORY OF FIFTY YEARS OF MINING AT TONOPAH: NBMG BULL. 51}{Deposit:: NOLAN, TB, 1935, UNDERGROUND GEOL. OF TONOPAH MINING DIST.: NBMG BULL. 23}{Production:: CARPENTER, ET AL, 1953, P. 149}
Reporter	Wong, George (Roberts, Ralph), La Pointe, D.D. (Tingley, J.V.)