Mine detail: Index Group

Previously called 'Index Nos. 1-12'

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Location: Skamania County, Washington, United States, North America
Lat / long: 46.34398, -122.09536
dep_id: 10047845
mrds_id: M700173
Commodity type: metallic
Major mineral: Copper
Minor mineral: Gold, Silver
Operation type: Unknown
Production size: Small ammount of material produced
Development status: Past Producer
ore: Chalcopyrite, Pyrite
orebody_fm: Faulted, brecciated, STRINGERS AND POCKETS)
work_type: Underground
model: 85: Polymetallic veins
ore_ctrl: Faulting And Brecciation Of Host Rocks
Reporter: Caress, Mary E. (Evarts, Russ), Peterson, Jocelyn A.
hrock_unit: Spirit Lake Pluton
hrock_type: Diorite
Structure: Faulting And Brecciation
tectonic: Cascade Volcanic Arc
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. 77.
  • Deposit:: LANDES, HENRY, THYNG, W.S., LYON, D.A., AND ROBERTS, MILNOR, 1902, THE METALLIFEROUS RESOURCES OF WASHINGTON, EXCEPT IRON: WASHINGTON GEOLOGICAL SURVEY ANNUAL REPORT FOR 1901, V. 1, PT. 2, P. 134.
  • Deposit:: MOEN, W.S., 1977, ST. HELENS AND WASHOUGAL MINING DISTRICTS OF THE SOUTHERN CASCADES OF WASHINGTON: WASHINGTON DIVISION OF GEOLOGY AND EARTH RESOURCES INFORMATION CIRCULAR 60, P. 17, 26.
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