Commodities
TertiaryIron, Chromium
Commodity typeM
Materials
Other materialsChromite, Enstatite, Magnetite, Olivine, Serpentine
Economic & production
Development statusOccurrence
Discovery year1940
Identification
Deposit ID10252767
Alternate namesMona, Floats, Grover, Bear, Twins No.1, Pedro, Deer, Cougar, Twins No.2, Sandy, Antelope
RegionNA
Data scoreB
Coordinates48.62671, -121.90264
References
GAUDETTE, H.E., GEOCHEMISTRY OF THE TWIN SISTERSULTRAMAFIC BODY, WASHINGTON, UNPUB. THESIS, UNIV. OFILLINOIS, 1953.WASH, DIV. OF MINES AND GEOL. BULL. 37, 1956.CHROMITE DEPOSITS OF TWIN SISTERS MTS., WASHINGTON.SHINE MING CO CONFIDENTIAL RPT 1942 FILES USBM WFOC