Mine detail: Ribbon

Previously called 'Washington Chrome'

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Location

Lat / long:

48.71537, -121.95568

Resource(M)

Primary:	Chromium
Ore:	Chromite
Gangue:	Anthophyllite, Clinochlore, Magnetite, Olivine, Prehnite, Pyroxene, Serpentine, Staurolite, Tourmaline
Orebody form:	LENSES AND PODS

Production

Operation type:	Unknown
Production size:	Small
Development status:	Past Producer

Geology

Host rock:	Twin Sisters Dunite
Host type:	Dunite
Tectonic:	Cascade Volcanic Arc
Alteration processes:	Dunite Is Serpentinized

References

MRDS	MP00127
DEP	10048535
Reference	{Deposit:: DERKEY, R.E., JOSEPH, N.L., AND LASMANIS, RAYMOND, 1990, METAL MINES OF WASHINGTON - PRELIMINARY REPORT: WASHINGTON DIVISION OF GEOLOGY AND EARTH RESOURCES OPEN-FILE REPORT 90-18, P. 566.}{Deposit:: HUNTTING, M.T., 1956, INVENTORY OF WASHINGTON MINERALS - PART II, METALLIC MINERALS: WASHINGTON DIVISION OF MINES AND GEOLOGY BULLETIN 37, V. 1, P. 42.}{Production:: HUNTTING, 1956}
Reporter	Peterson, Jocelyn A.