Iridescent Claim

The Iridescent Claim is a copper mine located in Lewis and Clark 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: Iridescent Claim  

State:  Montana

County:  Lewis and Clark

Elevation:

Primary Mineral: Copper

Lat, Long: 46.66111, -112.05417

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 Iridescent Claim

Iridescent Claim MRDS details

Site Name

Primary: Iridescent Claim


Commodity

Primary: Copper


Location

State: Montana
County: Lewis and Clark
District: Scratchgravel Hills District


Land Status

Not available


Holdings

Not available


Workings

Type: Surface


Ownership

Not available


Production

Not available


Deposit

Record Type: Site
Operation Category: Occurrence
Deposit Type: Contact Metasomatic
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

Type: R
Description: Boulder Batholith

Type: L
Description: Scratchgravel Quartz Monzonite Stock


Alterations

Alteration Type: L
Alteration Text: Oxidation


Rocks

Name: Quartz Monzonite
Role: Associated
Age Type: Host Rock Unit
Age Young: Neoproterozoic

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


Analytical Data

Not available


Materials

Ore: Chrysocolla
Ore: Malachite


Comments

Comment (Workings): OPEN PIT 15X20 FT AND 15 FT DEEP

Comment (Location): ABOUT 1 KM NW OF FOREST VALE CEMETERY.

Comment (Deposit): THE SURROUNDING GRANITE IS TRAVERSED BY SHEAR AND JOINT PLANES COATED WITH THIN CRUSTS OF MALACHITE AND CHRYSOCOLLA. THESE CRUSTS PROBABLY DERIVED FROM THE OXIDATION OF CHALCOPYRITE OR OTHER SULPHIDES THAT OCCUR IN THE METAMORPHOSED SEDIMENTS.


References

Reference (Deposit): USGS BULL 842, P. 55, PL. 3