Half Moon Mine

The Half Moon Mine is a lead and silver mine located in Lincoln county, Nevada at an elevation of 6,719 feet.

About the MRDS Data:

All mine locations were obtained from the USGS Mineral Resources Data System. The locations and other information in this database have not been verified for accuracy. It should be assumed that all mines are on private property.

Mine Info

Satelite View

MRDS mine locations are often very general, and in some cases are incorrect. Some mine remains have been covered or removed by modern industrial activity or by development of things like housing. The satellite view offers a quick glimpse as to whether the MRDS location corresponds to visible mine remains.

Site Name

Primary: Half Moon Mine
Secondary: NBMG Sample Site 1433.

Commodity

Primary: Lead
Primary: Silver
Secondary: Gold
Secondary: Zinc
Secondary: Copper
Tertiary: Arsenic
Tertiary: Tungsten

Location

State: Nevada
County: Lincoln
District: Pioche District District

Land Status

Land ownership: Private
Note: the land ownership field only identifies whether the area the mine is in is generally on public lands like Forest Service or BLM land, or if it is in an area that is generally private property. It does not definitively identify property status, nor does it indicate claim status or whether an area is open to prospecting. Always respect private property.

Holdings

Not available

Workings

Type: Surface/Underground

Ownership

Not available

Production

Year: 1880
Material type: ORE
Description: Ap_Grade: ^$9 Au/Ton 18 Oz Ag/Ton 17% Pb

Deposit

Record Type: Site
Operation Category: Producer
Operation Type: Unknown
Years of Production:
Organization:
Significant: N
Deposit Size: S

Physiography

Not available

Mineral Deposit Model

Model Name: Polymetallic veins

Orebody

Not available

Structure

Type: R
Description: Highland Thrust Plate, Major Nw Normal Faults

Type: L
Description: Normal Fault Trending N30w, Dipping 65e Cuts Off Vein On The East; Also A Ne-Striking Fault.

Alterations

Not available

Rocks

Name: Limestone
Role: Host
Age Type: Host Rock
Age Young: Early Cambrian

Analytical Data

Analytical Data: SAMPLE 1433 CONTAINS 10 % FE, GREATER THAN 5000 PPM MN, 100 PPM AG, 10000 PPM AS, 150 PPM CD, 1000 PPM CU, 20000+ PPM PB, 200 PPM SB, 500 PPM SN, 1000 PPM SR, 200 PPM V, 150 PPM W, 5000 PPM ZN.

Materials

Ore: Anglesite
Ore: Malachite
Ore: Sphalerite
Gangue: Hematite
Gangue: Quartz
Gangue: Limonite
Gangue: Pyrite

Comments

Comment (Workings): 2 MAJOR ADITS COMPRISED THE WORKINGS IN 1932. ADIT WAS CAVED AND BOARDED UP IN 1983, WITH PERIPHERAL LESSER WORKINGS. OLDER WORKINGS OBLITERATED BY NEW DRILL ROADS BEING BUILT IN 1983.

Comment (Geology): ORE IS IN FLAT LYING VEIN, APPROX 1 FOOT THICK, SOME PLACES UP TO 2 FEET. MAIN SULFIDE ORE IS GALENA, IN BLEBS AND VEINLETS, ALSO SOME PYRITE OXIDIZED TO LIMONITE, IN A MILKY WHITE QUARTZ GANGUE. VEIN IS IN OFFSET SEGMENTS, AND OCCURS AT THE BASE OF A 3 FT. LIMESTONE LARGELY REPLACED BY MANGANESE AND IRON OXIDE ORE.

Comment (Deposit): WORKINGS FOLLOW FISSURE-FILLING QUARTZ VEIN PARALLEL TO BEDDING PLANE BETWEEN SHALE AND LIMESTONE. ORE CONSISTS OF CRYSTALLINE PODS, BLEBS, AND STRINGERS OF ARGENTIFEROUS GALENA AND SPHALERITE ALONG WITH SECONDARY ANGLESITE ?, CERUSSITE AND MALACHITE IN QUARTZ VEIN STAINED WITH HEMATITE AND MN OXIDE. SULFIDES OCCUR BOTH FRESH AND OXIDIZED. QUARTZ VEIN HAS BEEN SHEARED AND CRUSHED BY LATER MOVEMENT. VEIN CHANGES DIP ABRUPTLY TO THE SOUTH, STEEPENING TO 60-70S.

Comment (Location): 6 CLAIMS, 42 ACRES

References

Reference (Deposit): ABBOTT, J. W., 1914, MIN AND SCI PRESS, P. 485.

Reference (Deposit): SMITH, P. AND BENTZ,JJ., 1983, FIELD EXAMINATION REPORT, AUG 25, 1983.

Reference (Deposit): USGS PP 496.

Reference (Deposit): ANDERSON, J. C., 1922, ENG AND MIN JOUR, VOL 113.

Reference (Deposit): WEED, W. H., ED., 1922, THE MINES HANDBOOK, VOL XIII, P. 1122-1123, AND VOL XV, P. 1174.

Reference (Production): TSCHANTZ AND PAMPEYAN, 1970

Reference (Deposit): TSCHANZ, C.M., AND PAMPEYAN, E.H., 1970, GEOLOGY AND MINERAL DEPOSITS OF LINCOLN CO. NEVADA. NEVADA BUR OF MINES, BULL 73 P.

Reference (Deposit): WESTGATE, L.G. AND KNOPF, A., 1932, GEOLOGY AND ORE DEPOSITS OF THE PIOCHE DISTRICT, NEVADA. USGS PROF. PAPER 171 P.

Reference (Deposit): HILL, J.M., 1916, NOTES ON SOME MINING DISTRICTS IN EASTERN NEVADA USGS BULL 648 P.

Reference (Deposit): COUCH, B.F., CARPENTER, J.A., 1943, NEVADA'S METAL AND MINERAL PRODUCTION (1859-1940, INCLUSIVE) UNIV. OF NEVADA BULL 38, P. 85-89

Reference (Deposit): SHAW, S. F., 1909, ENG. AND MIN JOUR, P. 545-548.

Nevada Gold

Nevada has a total of 368 distinct gold districts. Of the of those, just 36 are major producers with production and/or reserves of over 1,000,000 ounces, 49 have production and/or reserves of over 100,000 ounces, with the rest having less than 100,000 ounces. Read more: Gold Districts of Nevada.