Description
Whitman Cross, USGS
Commodities
PrimaryPotassium, Silver, Aluminum, Gold
SecondaryLead, Zinc
Commodity typeB
Deposit
Model154: Epithermal quartz-alunite Au
Deposit sizeN
WorkingsSurface/Underground
Orebody formLARGE CHIMNEY (VOLCANIC CONDUIT)
Materials
Ore mineralsAlunite, Diaspore, Kaolinite, Pyrite, Galena, Sphalerite
GangueQuartz
Geology
Host rockRhyolite · Rosita Hills Rhyolite
Associated rockRhyolite
AlterationAlunitization, Silicification, Kaolinization. Alteration Of Rhyolite To Alunite By Solfataric Action
Economic & production
Development statusPast Producer
Discovery year1890
Identification
Deposit ID10009280
MRDS IDD002159
RegionNA
Data scoreB
Coordinates38.10472, -105.36139
References
THOENEN, J. R., 1941 , ALUNITE RESOURCES OF THE UNITED STATES: USBM REPT. INV. 3561 , P. 13.CROSS, C. W., 1891 , ON ALUNITE AND DIASPORE FROM THE ROSITA HILLS, COLORADO: AM. JOUR. SCI., 3RD SER., V. 41 , NO. 246 , P. 466 - 475 .CROSS, C. W., 1896 , GEOLOGY OF SILVER CLIFF AND THE ROSITA HILLS, COLORADO: USGS 17TH ANN. REPT., PT. 2 , P. 314 - 315 , 377 - 378 .CROSS, C. W., 1912 , ALUNITE DEPOSITS OF ROSITA HILLS, COLORADO, USGS BULL. 511 , P. 38 - 41 .GARDNER, L. S., 1943 , UNPUB. REPT. IN USGS FILE1878 DIREXPL UNKNOWN: PROSPECTING WORKS1883 GEOLMAP W. CROSS: PUB. REPTS.THOENEN, J. R., 1941 , ALUNITE RESOURCES OF THE UNITED STATES: USBM REPT. INV. 3561 , P. 13 - 14.1942 RECON L. S. GARDNER: UNPUB. REPT.SHARP, W.N., 1978, GEOLOGIC MAP OF THE SILVER CLIFF AND ROSITA VOLCANIC CENTERS, CUSTER COUNTY, COLORADO: USGS MAP I-1081, 1:24,000.Sunshine Mining Co. Colorado exploration files, unpublished data, Colorado Geological Survey.