Mine detail: Mashel River Prospect

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Location: Pierce County, Washington, United States, North America
Lat / long: 46.86648, -122.10092
dep_id: 10042383
mrds_id: M060149
Commodity type: metallic
Major mineral: Mercury
Minor mineral: Silver
Trace mineral: Arsenic, Antimony
Operation type: Unknown
Production size: No production occurred
Development status: Occurrence
ore: Cinnabar, Orpiment, Realgar, Stibnite
gangue: Limonite, Quartz
orebody_fm: VEIN, TABULAR MASSES
model: 151: Epithermal vein, Sado
alteration: Andesite Adjacent To Quartz Vein Is Bleached And Locally Contains Abundant Fine-Grained Pyrite
ore_ctrl: Fractures
Reporter: Puffett, Willard P., Peterson, Jocelyn A.
hrock_type: Andesite
Structure: Ne Trending Quartz Vein
tectonic: Cascade Volcanic Arc
References:
  • Deposit:: DANIELS, JOSEPH, 1914, THE COAL FIELDS OF PIERCE COUNTY: WASHINGTON GEOLOGICAL SURVEY BULLETIN 10, 146 P.
  • Deposit:: HUNTTING, M.T., 1956, INVENTORY OF WASHINGTON MINERALS - PART II, METALLIC MINERALS: WASHINGTON DIVISION OF MINES AND GEOLOGY BULLETIN 37, V. 1, P. 266.
  • Deposit:: U.S. BUREAU OF MINES, 1965, MERCURY IN WASHINGTON, IN MERCURY POTENTIAL OF THE UNITED STATES: U.S. BUREAU OF MINES INFORMATION CIRCULAR 8252, P. 365.
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