Commodities
TertiaryMagnesite, Iron, Chromium
Commodity typeM
Materials
Other materialsChromite, Enstatite, Magnetite, Olivine, Serpentine
Economic & production
Development statusOccurrence
Discovery year1930
Identification
Deposit ID10254002
MRDS IDM700059
Alternate namesCultus Claim, Warren Claim, Robert Claim, Sisters Claim, Skookum Claim, Anne Claim
RegionNA
Data scoreB
Coordinates48.67841, -121.98544
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.CHROMITE DEPOSITS OF THE THREE LAKES AREA, TWIN SISTERSRANGE, WHATCOM AND SKAGIT COUNTIES, WASH., SUNSHINEMINING CO. CONFIDENTIAL REPORT, 1942.