Mine detail: Dolphin Mine

Previously called 'Bonanza'

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Location

Lat / long:

47.44482, -120.97924

Resource(M)

Primary:	Copper
Tertiary:	Silver, Gold, Cobalt, Iron
Ore:	Chalcopyrite, Pyrite
Gangue:	Quartz, Serpentine
Orebody form:	DISSEMINATED

Production

Operation type:	Unknown
Production size:	Small
Development status:	Producer
Production years:	1905-1917

Geology

Host rock:	Ingalls Tectonic Complex
Host type:	Peridotite
Tectonic:	Cascade Volcanic Arc
Alteration processes:	Silicification

References

MRDS	M025867
DEP	10109505
Reference	{Deposit:: HUNTTING, M.T., 1956, INVENTORY OF WASHINGTON MINERALS - PART II, METALLIC MINERALS: WASHINGTON DIVISION OF MINES AND GEOLOGY BULLETIN 37, V.1, P. 60.}{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. 129.}
Reporter	Andrews, David H. (Lawson, William A.), Peterson, Jocelyn A.