Florence Group

The Florence Group is a copper mine located in Elko county, Nevada.

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

Name: Florence Group  

State:  Nevada

County:  Elko

Elevation:

Commodity: Copper

Lat, Long: 41.75694, -114.81500

Map: View on Google Maps

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.


Satelite image of the Florence Group

Florence Group MRDS details

Site Name

Primary: Florence Group


Commodity

Primary: Copper
Secondary: Molybdenum
Secondary: Iron


Location

State: Nevada
County: Elko
District: Contact (48)


Land Status

Not available


Holdings

Not available


Workings

Not available


Ownership

Owner Name: Maine Contact Copper Co.
Years: 1912 -


Production

Not available


Deposit

Record Type: Site
Operation Category: Occurrence
Operation Type: Unknown
Discovery Year: 1912
Years of Production:
Organization:
Significant: N
Deposit Size: S


Physiography

General Physiographic Area: Intermontane Plateaus
Physiographic Province: Columbia Plateau
Physiographic Section: Snake River Plain


Mineral Deposit Model

Model Name: Polymetallic veins


Orebody

Form: TABULAR


Structure

Type: L
Description: Granodiorite Stock With Assoc. Faults, Fractures


Alterations

Alteration Type: L
Alteration Text: Some Oxidation


Rocks

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

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

Name: Diorite
Role: Associated
Age Type: Associated Rock Unit
Age Young: Late Jurassic

Name: Diorite
Role: Associated
Age Type: Host Rock Unit
Age Young: Late Jurassic


Analytical Data

Not available


Materials

Ore: Chalcopyrite
Ore: Bornite
Gangue: Quartz


Comments

Comment (Deposit): CONSISTS OF SHALLOW SHAFTS EXPOSING SEVERAL VEINS MOST OF WHICH ARE IN OR CLOSE TO ALASKITE DIKES. AREA IS WITHIN THE GRANODIORITE MASS BEEWEEN CONTACT AND THE WEST CONTACT AREA (SCHRADER, 1935, P 36-7) GROUP CONSISTS OF 12 CLAIMS. THE FLORENCE CLAIMS NOS. 13 AND 16 ARE DESCRIBED IN FURTHER DETAIL (SCHRADER, 1912, P 132-3) ; INFO.SRC : 1 PUB LIT

Comment (Location): AREA IS WITHIN GRANODIORITE

Comment (Development): 12 CLAIMS.

Comment (Deposit): VEINS IN, OR CLOSE TO, ALASKITE DIKES

Comment (Workings): SHALLOW SHAFTS


References

Reference (Deposit): SCHRADER, F.C. (1912) A RECONN. OF THE JARBIDGE, CONTACT, AND ELK MT. MINING DISTRICTS, ELKO CO., NEVADA: USGS BUL. 497.

Reference (Deposit): SCHRADER, F.C. (1935) THE CONTACT MINING DISTRICT, NEVADA: USGS BUL 847-A

Reference (Deposit): HOPE, R.A. & COATS, R.R. (1976) PRELIM. GEOLOGIC MAP OF ELKO CO., NEV: USGS OFR 76-779.


Nevada Gold

Gold Districts of Nevada

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.