J.I.C.

The J.I.C. is a copper mine located in Silver Bow county, Montana.

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: J.I.C.  

State:  Montana

County:  Silver Bow

Elevation:

Commodity: Copper

Lat, Long: 46.00833, -112.51528

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 J.I.C.

J.I.C. MRDS details

Site Name

Primary: J.I.C.


Commodity

Primary: Copper
Secondary: Silver
Secondary: Gold
Tertiary: Arsenic


Location

State: Montana
County: Silver Bow
District: Butte District


Land Status

Not available


Holdings

Not available


Workings

Not available


Ownership

Not available


Production

Not available


Deposit

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


Physiography

General Physiographic Area: Rocky Mountain System
Physiographic Province: Northern Rocky Mountains


Mineral Deposit Model

Not available


Orebody

Not available


Structure

Not available


Alterations

Not available


Rocks

Name: Quartz Monzonite
Role: Associated
Age Type: Associated Rock
Age Young: Late Cretaceous

Name: Quartz Monzonite
Role: Associated
Age Type: Associated Rock Unit
Age Young: Late Cretaceous

Name: Quartz Monzonite
Role: Associated
Age Type: Host Rock
Age Young: Late Cretaceous


Analytical Data

Not available


Materials

Ore: Chalcocite
Ore: Enargite
Ore: Gold
Gangue: Quartz
Gangue: Pyrite


Comments

Comment (Deposit): THE GLENGARY VEIN IS FOUND IN THE JIC MINE. ALONG THE FOOTWALL IS A THIN BAND OF PYRITIC ORES LESS THAN A FOOT THICK, SEPARATED BY 8 FEET OF SOFTENED SERICITIZED GRANITE FROM A HANGING-WALL STREAK OF PYRITE, CARRYING ENARGITE AND CHALCOCITE, CROSS FRACTURES MAKING "SPUR VEINS" CAN BE SEEN.

Comment (Workings): SHAFT


References

Reference (Deposit): USGS PP 74, P. 189-192


Principal Gold Districts of Montana

Principal Gold Districts of Montana

In Montana, 54 mining districts have each have produced more than 10,000 ounces of gold. The largest producers are Butte, Helena, Marysville, and Virginia City, each having produced more than one million ounces. Twenty seven other districts are each credited with between 100,000 and one million ounces of gold production. Read more: Principal Gold Districts of Montana.