Commodities
PrimaryGold, Silver
Commodity typeM
Deposit
Deposit typeReplacement
Deposit sizeS
Ore controlVertical Fractures; Contact Between Basal Quartzite And Sill
Materials
Ore mineralsGold, Silver, Sylvanite
Geology
Associated rockPorphyry · Porphyry Sill (Phonolite)
AlterationHydrothermal Alteration Of Phonolite, Accompanied By Some Mineralization.
Economic & production
Development statusPast Producer
First production1899
Identification
Deposit ID10104223
MRDS IDSD02143
Alternate namesThe Ironside
RegionNA
Data scoreB
Coordinates44.38968, -103.87558
References
US BUREAU OF MINES, 1954 , BLACK HILLS MINERAL ATLAS, SOUTH DAKOTA: PART 1 , BUREAU OF MINES INFORMATION CIRCULAR 7688 .SHAPIRO, L. H., AND GRIES, J. P., 1970 , ORE DEPOSITS IN ROCKS OF PALEOZOIC AND TERTIARY AGE OF THE NORTHERN BLACK HILLS, SOUTH DAKOTA, SOUTH DAKOTA SCHOOL OF MINES AND TECHNOLOGY.US BUREAU OF MINES, 1954 , BLACK HILLS MINERAL ATLAS, SOUTH DAKOTA: PART 1 , BUREAU OF MINES INFORMATION CIRCULAR 7688 . { SHAPIRO, L. H., AND GRIES, J. P., 1970 , ORE DEPOSITS IN ROCKS OF PALEOZOIC AND TERTIARY AGE OF THE NORTHERN BLACK HILLS, SOUTH DAKOTA, SOUTH DAKOTA SCHOOL OF MINES AND TECHNOLOGY