Commodities
PrimaryZinc
SecondaryIron, Manganese
TertiaryMolybdenum, Cobalt, Nickel
Commodity typeM
Deposit
Deposit sizeM
Orebody formCONFORMABLE, SYNCLINAL
Ore controlStratigraphic Control
Materials
Ore mineralsWillemite, Franklinite, Zincite, Sphalerite
GangueCalcite, Augite, Diopside, Biotite
Other materialsMolybdenite, Chloanthite, Arsenopyrite, Pyrite, Descloizite
Geology
Host rockMarble · Franklin Marble Formation
Associated rockGneiss,Quartzite,Limestone · "Cork Hill gneiss", "Furnace Magnetite Bed", "Hardyston Quartzite", "Kittatinny Limestone"
StructureMajor Syncline, Numerous Cross Folds, Faults, Fractures
Tectonic settingEpicratonic Basin
AlterationDolomitization
Economic & production
Development statusPast Producer
First production1845
Discovery year1750
Identification
Deposit ID10073174
MRDS IDW019035
Alternate namesFranklin-Sterling Hill Zn-Mn-Fe Mines, Franklin Furnace, Franklin-Sterling Hill Zinc Mine
RegionNA
Data scoreB
Coordinates41.11888, -74.58736
References
BILBREY, J. H., 1962, COBALT, A MATERIALS SURVEY: U.S. BUREAU OF MINES INFORMATION CIRCULAR 8130, P. 30.PALACHE, C., 1935, THE MINERALS OF FRANKLIN AND STERLING HILL, SUSSEX COUNTY NEW JERSEY: U.S. GEOLOGICAL SURVEY PROFESSIONAL PAPER 180.PINGER, A. W., 1950, GEOLOGY OF THE FRANKLIN - STERLING AREA, SUSSEX COUNTY, NEW JERSEY; INTERNATIONAL GEOLOGICAL CONGRESS, 18TH, PT. 7 P. 77 - 87.BROWN, J.S., ORE DEPOSITS OF THE NORTHEASTERN UNITED STATES, IN RIDGE, J.D., ED., ORE DEPOSITS OF THE UNITED STATES 1933-1967 (GRATON-SALES VOLUME) V. 1: AMERICAN INSTITUTE OF MINING, METALLURGICAL AND PETROLEUM ENGINEERS, P. 1-19.