Commodities
PrimarySilver, Copper
SecondaryGold
TertiaryLead, Zinc, Arsenic, Tungsten
Commodity typeM
Deposit
Deposit sizeS
WorkingsUnderground
Orebody formBRECCIA ZONE
Materials
Ore mineralsChalcopyrite, Galena, Pyrite, Pyrrhotite, Scheelite, Sphalerite
GangueBiotite, Calcite, Chlorite, Quartz, Sericite
Geology
Host rockGneiss · Swakane Biotite Gneiss;
Tectonic settingCascade Volcanic Arc
AlterationPropylitic
Economic & production
Development statusProducer
Identification
Deposit ID10008893
MRDS IDD001385
Alternate namesRoyal Development Co.Royal, Trinity
RegionNA
Data scoreB
Coordinates48.07538, -120.85008
References
LEMMON, D.M., U.S. GEOLOGICAL SURVEY, UNPUB. DATA.LEMMON, D.M., AND TWETO, O.L., 1962, TUNGSTEN IN THE UNITED STATES: U.S. GEOLOGICAL SURVEY MINERAL INVESTIGATIONS RESOURCE MAP MR-25, SCALE 1:1,168,000.CULVER, H.E., AND BROUGHTON, W.A., 1945, TUNGSTEN RESOURCES OF WASHINGTON: WASHINGTON DIVISION OF GEOLOGY BULLETIN 34, P. 14-15.HUNTTING, M.T., 1956, INVENTORY OF WASHINGTON MINERALS - PART II, METALLIC MINERALS: WASHINGTON DIVISION OF MINES AND GEOLOGY BULLETIN 37, V. 1, P. 50.DERKEY, R.E., JOSEPH, N.L., AND LASMANIS, RAYMOND, 1990, METAL MINES OF WASHINGTON - PRELIMINARY REPORT: WASHINGTON DIVISION OF GEOLOGY AND EARTH RESOURCES OPEN-FILE REPORT 90-18, P. 19.STOTELMEYER, R.B., JOHNSON, F.L., MCHUGH, E.L., FEDERSPIEL, F.E., DENTON, D.K., JR., AND STEBBINS, S.A., 1982, MINERAL INVESTIGATION OF THE GLACIER PEAK WILDERNESS AND ADJACENT AREAS, CHELAN, SKAGIT, AND SNOHOMISH COUNTIES, WASHINGTON: U.S. BUREAU OF MINES OPEN-FILE REPORT MLA 89-82, P. 17.STOTEMLEYER AND OTHERS, 1982