Mine detail: Stephens

Previously called 'Fidalgo'

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Location: Skagit County, Washington, United States, North America
Lat / long: 48.49508, -122.64793
dep_id: 10088856
mrds_id: M700358
Commodity type: metallic
Major mineral: Copper, Gold, Silver
Operation type: Unknown
Production size: Small ammount of material produced
Development status: Past Producer
ore: Chalcopyrite, Pyrite
gangue: Chlorite, Quartz, Serpentine
orebody_fm: VEIN
model: 85: Polymetallic veins
conc_proc: Hydrothermal(?)
ore_ctrl: Shear Zone
Reporter: Lawson, William A. (Evarts, Russell C.), Peterson, Jocelyn A.
hrock_type: Diorite
Structure: Shear Zone
tectonic: Active Margin (Leading Edge North American Plate); Accreted Terrane
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. 76.
  • 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. 334.
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