Mine detail: Pearl Mine

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Location: Powell, Granite County, Montana, United States, North America
Lat / long: 46.82188, -113.25674
dep_id: 10019696
mrds_id: DC11170
Commodity type: metallic
Major mineral: Copper, Gold
Operation type: Unknown
Deposit type: Replacement Vein
Production size: Small ammount of material produced
Development status: Past Producer
ore: Chrysocolla, Gold, Malachite
gangue: Garnet, Pyrite, Quartz
alteration: Oxidation
Reporter: Schruben, Paul, Unknown, Wise, Kristine K. (Elliott, James E.)
hrock_unit: Madison Group;Jefferson Limestone{Maywood Formation;Red Lion Formation{Hasmark Formation
hrock_type: Diorite,Limestone
arock_unit: Stock At Top 10 Deep
arock_type: Diorite
Structure: Bearmouth Overthrust, Garnet Stock
prod_yrs: PRE-1916.
References:
  • Deposit:: USGS BULL 660, P. 205-1
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