Montana · Powell, Granite County
Past Producer
Pearl Mine
Powell, Granite County, Montana, United States
Copper
Gold
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USGS source ↗
Commodities
Primary
Copper, Gold
Commodity type
M
Deposit
Deposit type
Replacement Vein
Deposit size
S
Materials
Ore minerals
Chrysocolla, Gold, Malachite
Gangue
Garnet, Pyrite, Quartz
Geology
Host rock
Diorite,Limestone · Madison Group;Jefferson Limestone{Maywood Formation;Red Lion Formation{Hasmark Formation
Associated rock
Diorite · Stock At Top 10 Deep
Structure
Bearmouth Overthrust, Garnet Stock
Alteration
Oxidation
Economic & production
Development status
Past Producer
Production years
PRE-1916.
Identification
Deposit ID
10019696
MRDS ID
DC11170
Region
NA
Data score
B
Coordinates
46.82188, -113.25674
References
USGS BULL 660, P. 205-12