Commodities
PrimaryCopper, Silver, Gold
Commodity typeM
Deposit
Deposit sizeS
WorkingsUnderground
Orebody formVEIN
Materials
Ore mineralsChalcopyrite, Malachite
GangueTourmaline
Geology
Host rockTonalite · Snoqualmie Batholith, Northern Phase;Snoqualmie Batholith, Northern Phase
Tectonic settingCascade Volcanic Arc
Economic & production
Development statusOccurrence
Identification
Deposit ID10048624
MRDS IDMP00223
Alternate namesJohn Stevens, Little Una
RegionNA
Data scoreB
Coordinates47.6587, -121.41564
References
DERKEY, R.E., JOSEPH, N.L., AND LASMANIS, RAYMOND, 1990, METAL MINES OF WAHSINGTON - PRELIMINARY REPORT: WASHINGTON DIVISION OF GEOLOGY AND EARTH RESOURCES OPEN-FILE REPORT 90-18, P. 123.HUNTTING, M.T., 1956, INVENTORY OF WASHINGTON MINERALS - PART II, METALLIC MINERALS: WASHINGTON DIVISION OF MINES AND GEOLOGY BULLETIN 37, V. 1, P. 59.HUNTTING, 1956