Mine detail: Last Chance Mine

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Location: Skamania County, Washington, United States, North America
Lat / long: 45.71009, -122.21451
dep_id: 10047849
mrds_id: M700177
Commodity type: metallic
Major mineral: Copper, Vanadium, Gold, Silver
Trace mineral: Lead, Zinc
Operation type: Unknown
Production size: No production occurred
Development status: Occurrence
ore: Bornite, Chalcocite, Chrysocolla, Descloizite, Malachite
gangue: Pyrite, Quartz
orebody_fm: VEIN
work_type: Underground
model: 85: Polymetallic veins
alteration: Locally Extensive Silicification And Argillization In Vein But Wall Rocks Only Weakly Propylitized
Reporter: Caress, Mary E. (Evarts, Russ), Peterson, Jocelyn A.
hrock_unit: Silver Star Pluton
hrock_type: Diorite
tectonic: Cascade Volcanic Arc
disc_yr: 1900
References:
  • Analytical Data:: QUARTZ DIORITE
  • Deposit:: HUNTTING, M.T., 1956, INVENTORY OF WASHINGTON MINERAL - PART II, METALLIC MINERALS: WASHINGTON DIVISION OF MINES AND GEOLOGY BULLETIN 37, V. 1, P. 77.
  • 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. 43, 53-55.
  • Deposit:: PHILLIPS, W.M., 1987, GEOLOGIC MAP OF THE VANCOUVER QUADRANGLE, WASHINGTON AND OREGON: WASHINGTON DIVISION OF GEOLOGY AND EARTH RESOURCES OPEN-FILE REPORT 87-10, SCALE 1:100,000.
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