Commodities
PrimarySilver, Manganese
SecondaryCopper, Zinc, Gold, Lead
TertiaryArsenic
Commodity typeM
Deposit
Deposit sizeS
WorkingsUnderground
Orebody formTABULAR, LENTICULAR, PODS
Ore controlJunction Of East-West Vein Fissures With Bedding Faults, Hasmark Fm., Philipsburg Batholith
Materials
Ore mineralsGalena, Gold, Psilomelane, Sphalerite, Tennantite
GanguePyrolusite, Quartz, Rhodochrosite
Geology
Host rockQuartzite,Marble,Limestone · Red Lion Formation;Hasmark Formation;Silver Hill Formation;Flathead Quartzite
StructurePhilipsburg Batholith, Philipsburg Anticline, Philipsburg Overthrust
Tectonic settingCordilleran Miogeosyncline
Economic & production
Development statusPast Producer
First production1870
Discovery year1868
Identification
Deposit ID10071346
MRDS IDW014680
Alternate namesPocahontas, Speckled Trout, Gem, Algonquin Group
RegionNA
Data scoreB
Coordinates46.32933, -113.26786
References
USBM REP INVES 4399, 9 P.USGS BULL 922-G, P. 157-204.USBM REP INVES 4723, 57 P.USGS BULL 725, P. 146-174.MBMG BULL 25, P. 18.USGS PP 78, P. 209-10.USGS BULL 1237, P. 15-57, PLATES.USBM RI 4399, RI 4723