Washington · Snohomish County
Occurrence

Union Prospect

Snohomish County, Washington, United States
GoldSilverArsenic
⌖ Show on mapUSGS source ↗
Commodities
PrimaryGold
SecondarySilver
TertiaryArsenic
Commodity typeM
Deposit
Model85: Polymetallic veins
Deposit sizeN
Orebody formVEIN IN SHEAR ZONE
Materials
Ore mineralsPyrite
Geology
Host rockMetasedimentary Rock · Chiwaukum Schist
Associated rockGranite · Grotto Batholith
Tectonic settingCascade Volcanic Arc
Economic & production
Development statusOccurrence
Identification
Deposit ID10036731
MRDS IDM025637
RegionNA
Data scoreB
Coordinates48.01426, -121.34121
References
HUNTTING, M.T., 1956, INVENTORY OF WASHINGTON MINERALS - PART II, METALLIC MINERALS: WASHINGTON DIVISION OF MINES AND GEOLOGY BULLETIN 37, V. 1, P. 165.BROUGHTON, W.A., 1942, INVENTORY OF MINERAL PROPERTIES IN SNOHOMISH COUNTY, WASHINGTON: WASHINGTON DIVISION OF GEOLOGY REPORT OF INVESTIGATIONS 6, P. 26.TABOR, R.W., BOOTH, D.B., VANCE, J.A., FORD, A.B., AND ORT, M.H., 1988, PRELIMINARY GEOLOGIC MAP OF THE SAUK RIVER 30 BY 60 MINUTE QUADRANGLE, WASHINGTON: U.S. GEOLOGICAL SURVEY OPEN-FILE REPORT 88-692, SCALE 1:100,000.