Commodities
PrimarySilver, Lead
SecondaryGold, Copper, Zinc
Commodity typeM
Deposit
Deposit sizeY
WorkingsUnderground
Orebody formSHOOTS
Ore controlOre Deposition Concentrated In Nw Deflections Created By Local Faulting
Materials
Ore mineralsGalena, Pyrargyrite, Silver, Sphalerite, Stephanite
GangueQuartz
Geology
Host rockDiorite,Gneiss
Associated rockDiorite,Rhyolite · Pre Beltian Gneisses & Schists;Pinto Diorite
StructureZone Of Igneous Intrusions Covering Over 800 Square Km., The Vein Has Been Offset By Several Cross Faults & Some Strike Faults That Have Crushed The Ore
Tectonic settingRocky Mountain Foreland
Economic & production
Development statusPast Producer
First production1925
Identification
Deposit ID10071378
MRDS IDW014723
Alternate namesLondon, Evening Star, Morning Star
RegionNA
Data scoreB
Coordinates46.94435, -110.74667
References
HERDLICK, J. A., 1949, INVESTIGATION OF THE STAR MINE, NEIHART DISTRICT, CASCADE COUNTY, MT, U.S. BUREAU MINES REPT. INVEST. 4474.SCHAFER, P. A., 1935, GEOLOGY & ORE DEPOSITS OF THE NEIHART MINING DISTRICT, CASCADE CO., MT, M.B.M.G. MEMOIR 13.ROBERTSON, A. F., 1951, MINES & MINERAL DEPOSITS - CASCADE COUNTY, U.S. BUREAU MINES INF. CIRC. 7589.KLEINKOPF, M. D., WITKIND, I. J., AND KEEFER, W. R., 1972, AEROMAGNETIC, BOUGUER GRAVITY, AND GENERALIZED GEOLOGIC MAPS OF THE CENTRAL PART OF THE LITTLE BELT MOUNTAINS, MONTANA: U.S. GEOLOGICAL SURVEY MAP GP-837ROBERTSON, 1951, U.S.B.M. INF. CIRC. 7589