Malachite Mine

The Malachite Mine is a copper mine located in Lyon county, Nevada at an elevation of 5,299 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: Malachite Mine
Secondary: Yerington - Malachite Copper Company

Commodity

Primary: Copper
Secondary: Gold
Secondary: Silver
Secondary: Gypsum-Anhydrite

Location

State: Nevada
County: Lyon
District: Yerington

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

Not available

Deposit

Record Type: Site
Operation Category: Past Producer
Deposit Type: Sedimentary
Operation Type: Unknown
Years of Production:
Organization:
Significant: N

Physiography

General Physiographic Area: Intermontane Plateaus
Physiographic Province: Basin And Range Province
Physiographic Section: Great Basin
Physiographic Detail: Basin And Mountains

Mineral Deposit Model

Not available

Orebody

Form: IRREGULAR

Structure

Type: R
Description: Yerington Batholith

Alterations

Not available

Rocks

Name: Diorite
Role: Associated
Age Type: Associated Rock
Age Young: Late Cretaceous

Name: Diorite
Role: Associated
Age Type: Host Rock
Age Young: Late Triassic

Analytical Data

Analytical Data: OIL FLOTATION TEST PERFORMED NOV. 2 , 1915 BY CALAVARES COPPER CO. YIELDED FOLLOWING RESULTS: HEADINGS, 4713 , 5.02 % CU
Analytical Data: TAILINGS, 355G, 2.74 % CU
Analytical Data: CONSTS. 2ND, 80G, 9.68 % CU
Analytical Data: CONCTS. 1ST 365, 17.68 % CU

Materials

Ore: Chalcocite
Ore: Malachite
Ore: Chalcopyrite
Ore: Cuprite
Ore: Bornite

Comments

Comment (Commodity): CRUDE AVE. GRADE OF ORE 6.2 PERCENT CU

Comment (Location): JOINS MASON VALLEY MINE ON THE SOUTH

Comment (Production): PRODUCTION ESTIMATED AT 15 TO 25 TONS ORE PER DAY IN 1912 ; PROD. CREDITED TO MASON VALLEY MINES CO.

Comment (Deposit): CONTACT METASOMATIC AUREOLE DEPOSIT PARALLEL IN CHARACTER TO THE MASON VALLEY DEPOSIT - PROBABLY EXTENSION OF. REFER TO RECORD NO. M035865

Comment (Workings): ADIT DRIVEN 550 FT ON THE MALACHITE CLAIM 3 COMP. SHAFT ON THE PLUMBUM, NUMEROUS SURFACE CUTS AND PITS WORKING CONNECT WITH 300 FT LEVEL MASON VALLEY MINE

Comment (Deposit): THE PROPERTY (TOTALING 192.6 ACRES) IS COMPRISED OF THE MALACHITE; M. EXT. M. NO.S 1 , 2 , 3 ; MONTGOMERY; JANUARY; PLUMBUM; KNOW U DONT; LIME RIDGE CLAIMS. ; INFO.SRC : 1 PUB LIT; 2 UNPUB REPT

References

Reference (Deposit): KNOPF, A., 1918 , GEOLOGY AND ORE DEPOSITS OF THE YERINGTON DISTRICT, NEV., USGS PROF. PAPER 114 .

Reference (Deposit): MOORE, J. G., 1969 , GEOLOGY AND MINERAL DEPOSITS OF LYON, DOUGLAS, AND ORMSBY CO., NEV., NEV. BUREAU OF MINES, BULL. 75 .

Reference (Deposit): EINAND, M. T., 1977 , PETROGENISIS OF THE COPPER - BEARING SKARN AT THE MASON VALLEY MINE, YERINGTON DIST. NEV., ECON. GEOL. VOL. 72 , NO. 5 .

Reference (Deposit): 1907 RECON MINING AND SCIENTIFIC PRESS

Reference (Deposit): 1969 RECON NEV. BUREAU OF MINES, BULL. 75

Reference (Production): F (2)

Reference (Deposit): 1910 RECON RANSOME, F. L., MINING AND SCI. PRESS

Reference (Deposit): 1918 GEOLMAP KNOPF, A., PROF. PAPER NO. 114

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.