Commodities
PrimaryCopper, Gold, Silver
Commodity typeM
Deposit
Deposit sizeS
Ore controlOre Occurs In A Shear Zone That Ranges From A Few Inches To 27 Ft. Wide (Broughton, 1942, P. 15). Weaver (1912, P. 76) Describes The Mineralization As Irregularly Distributed In Lenses Accompanied By Considerable Amounts Of Crumbly Granite Resembling Arkose.
Materials
Ore mineralsBornite, Chalcocite, Chalcopyrite, Fluorite
GangueCalcite, Pyrite, Quartz
Geology
Host rockTonalite
StructureRocks Of The Area Include Various Accreted (Melange) Terranes And Batholithic Rocks Representing Early Igneous Activity Of The Cascade Magmatic Arc.
Economic & production
Development statusPast Producer
Identification
Deposit ID10056098
MRDS IDSP00359
Alternate namesEthel Consolidated
RegionNA
Data scoreB
Coordinates47.87092, -121.49649
References
BROUGHTON, W.A., 1942, INVENTORY OF MINERAL PROPERTIES IN SNOHOMISH COUNTY, WASHINGTON: WASHINGTON DIVISION OF GEOLOGY REPORT OF INVESTIGATIONS 6, 64 P., 1 PL.DERKEY, R.E.; JOSEPH, N.L.; LASMANIS, R., 1990, METAL MINES OF WASHINGTON-PRELIMINARY REPORT: STATE OF WASHINGTON, DEPARTMENT OF NATURAL RESOURCES, DIVISION OF GEOLOGY AND EARTH RESOURCES OPEN-FILE REPORT 90-18, 577 P.HUNTTING, M. T., 1956, INVENTORY OF WASHINGTON MINERALS-PART II, METALLIC MINERALS: WASHINGTON DIVISION OF MINES AND GEOLOGY BULLETIN 37, V. 1, 428 P.; V. 2, 67 P.TABOR, R.W.; FRIZZELL, V.A., JR.; BOOTH, D.B.; WHETTEN, J.T.; WAITT, R.B.; ZARTMAN, R.E., 1982, PRELIMINARY GEOLOGIC MAP OF THE SKYKOMISH RIVER 1:100,000 QUADRANGLE, WASHINGTON: U.S. GEOLOGICAL SURVEY OPEN-FILE REPORT 82-747, 31 P., 1 PL.WEAVER, C.E., 1912, GEOLOGY AND ORE DEPOSITS OF THE INDEX MINING DISTRICT: WASHINGTON GEOLOGICAL SURVEY BULLETIN 7, 96 P.