Commodities
TertiaryIron, Chromium
Commodity typeM
Materials
Other materialsChromite, Enstatite, Magnetite, Olivine, Serpentine
Economic & production
Development statusProspect
Discovery year1935
Identification
Deposit ID10131537
MRDS IDM700099
Alternate namesCrater, Hardscrabble, Odmark
RegionNA
Data scoreC
Coordinates48.71151, -122.01434
References
GAUDETTE, H.E., GEOCHEMISTRY OF THE TWIN SISTERSULTRAMAFIC BODY, WASHINGTON, UNPUB. THESIS, UNIV. OFILLINOIS, 1953.WA. DIV. MINES AND GEOL. BULLETIN 37, 1956, PART II,VOL. 1, P. 42.WA. DIV. MINES AND GEOL. BULLETIN 57, 1969, TABLE 19,P. 68.RAGAN, D.M., GEOL. OF TWIN SISTERS DUNITE NORTHERNCASCADES, WASHINGTON, UNPUB THESIS UNIV OF WASH, 1961.SPANSKI, G.T., TWIN SISTERS MTS, WASH, UNIV OFILLINOIS 1963.