Mine detail: Old Democrat Mine

Previously called 'Part of Comet Coalition Mines, Co, In 1949.NBMG Sample Site 1443'

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Location

Lat / long:

37.69386, -114.5239

Resource(M)

Primary:	Zinc, Lead, Silver
Secondary:	Copper
Tertiary:	Manganese, Iron, Cadmium, Arsenic, Antimony, Zirconium, Tin
Ore:	Galena, Manganite, Psilomelane, Pyrolusite, Sphalerite
Gangue:	Clay, Goethite, Lepidocrocite, Pyrite
Orebody form:	TABULAR TO IRREGULAR
Discovery year:	1892

Production

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

Geology

Host rock:	Combined Metals Member Of Pioche Shale
Host type:	Limestone
Associated type:	Shale,Siltstone,Lamprophyre
Structure:	N18w Fault Zone At 400 Ft From Portal.
Alteration processes:	Intense Silicification

References

MRDS	M032039
DEP	10037356
Reference	{Deposit:: TSCHANTZ CM & PAMPEYAN EH, 1970, GEOLOGY & MINERAL DEPOSITS OF LINCOLN CO., NEV BUR MINES BULL 73}{Deposit:: BENTZ, J. AND SMITH, P., 1983, FIELD EXAMINATION REPORT, AUG 27, 1983.}{Deposit:: FITCH, D. C., 1964, GEOLOGY AND ORE DEPOSITS OF THE COMET DISTRICT, LINCOLN CO., NEVADA; UNIV OF NEW MEXICO MS THESIS, P. 77-78, FIG. 21.}{Deposit:: USAEC PRELIM RECONN REPT 3653.}
Reporter	Harner, Joy L. (Roberts, Ralph J.), La Pointe, D.D. (Tingley, J.V.)