Mine detail: Old Democrat Mine

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

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Location: Lincoln County, Nevada, United States, North America
Lat / long: 37.69386, -114.5239
dep_id: 10037356
mrds_id: M032039
Commodity type: metallic
Major mineral: Zinc, Lead, Silver
Minor mineral: Copper
Trace mineral: Manganese, Iron, Cadmium, Arsenic, Antimony, Zirconium, Tin
Operation type: Unknown
Production size: Medium ammount of material produced
Development status: Past Producer
ore: Galena, Manganite, Psilomelane, Pyrolusite, Sphalerite
gangue: Clay, Goethite, Lepidocrocite, Pyrite
orebody_fm: TABULAR TO IRREGULAR
model: 72: Polymetallic replacement
alteration: Intense Silicification
conc_proc: Oxidation
ore_ctrl: Fractures; Gouge Zones
Reporter: Harner, Joy L. (Roberts, Ralph J.), La Pointe, D.D. (Tingley, J.V.)
hrock_unit: Combined Metals Member Of Pioche Shale
hrock_type: Limestone
arock_type: Shale,Siltstone,Lamprophyre
Structure: N18w Fault Zone At 400 Ft From Portal.
disc_yr: 1892
References:
  • 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.
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