Mine detail: Dolphin Mine

Previously called 'Bonanza'

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Location: Kittitas County, Washington, United States, North America
Lat / long: 47.44482, -120.97924
dep_id: 10109505
mrds_id: M025867
Commodity type: metallic
Major mineral: Copper
Trace mineral: Silver, Gold, Cobalt, Iron
Operation type: Unknown
Production size: Small ammount of material produced
Development status: Producer
ore: Chalcopyrite, Pyrite
gangue: Quartz, Serpentine
orebody_fm: DISSEMINATED
work_type: Underground
alteration: Silicification
ore_ctrl: Magmatic Segregation?
Reporter: Andrews, David H. (Lawson, William A.), Peterson, Jocelyn A.
hrock_unit: Ingalls Tectonic Complex
hrock_type: Peridotite
tectonic: Cascade Volcanic Arc
prod_yrs: 1905-1917
References:
  • 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.
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