Montana · Granite County
Past Producer
Hope Group
Granite County, Montana, United States
Silver
Copper
Lead
Gold
Manganese
Barium-Barite
Antimony
Arsenic
Fluorine-Fluorite
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USGS source ↗
Commodities
Primary
Silver, Copper, Lead
Secondary
Gold, Manganese
Tertiary
Barium-Barite, Antimony, Arsenic, Fluorine-Fluorite
Commodity type
B
Deposit
Deposit type
Polymetallic Replacement
Model
72: Polymetallic replacement
Deposit size
S
Workings
Surface/Underground
Orebody form
TABULAR
Ore control
Deeper In Higher In Cu Content, 3-4%/Ton Cu
Materials
Ore minerals
Argentite, Cerargyrite, Chalcocite, Galena, Gold, Malachite, Tetrahedrite
Gangue
Barite, Calcite, Fluorite, Iron, Pyrite, Quartz, Rhodochrosite
Geology
Host rock
Limestone · Jefferson Limestone
Structure
Philipsburg Batholith, Philipsburg Anticline, Philipsburg Overthrust
Tectonic setting
Cordilleran Miogeosyncline
Alteration
Limestone Marmerized And Some Tremolite Developed.
Economic & production
Development status
Past Producer
First production
1866
Discovery year
1865
Identification
Deposit ID
10071337
MRDS ID
W014670
Alternate names
Prince, Imperial, Little Emma, Comanche, Cuno Shaft, Jubilee, Shapleigh Tunnel, Hope Tailings, Shapleigh Mine, Field, Potosi, Porter, Take All
Region
NA
Data score
B
Coordinates
46.34017, -113.27536
References
USBM REP INVES 4399, 9 P.USGS PP 78, P. 213-18, PL. 1, 2.USGS BULL 955-E, P. 220-21.MBMG BULL 115, P. 5.USGS BULL 1237, P. 30-1, PLATES