References
RATTE, J.C., 1968, ALUNITE, IN MINERAL AND WATER RESOURCES OF COLORADO: U.S. GOVT. PRINTING OFFICE, P. 155-157.PRATT, W.P., AND OTHERS, 1969, GEOLOGIC MAP OF THE RICO QUADRANGLE, DOLORES AND MONTEZUMA COUNTIES, COLORADO: USGS MAP GQ-797.MCKNIGHT, E.T., 1974, GEOLOGY AND ORE DEPOSITS OF THE RICO DISTRICT, COLORADO: USGS PROF. PAPER 723.SERNA-ISAZA, M.J., 1971, GEOLOGY AND GEOCHEMISTRY OF CALICO PEAK, DOLORES COUNTY, COLORADO: COLORADO SCHOOL OF MINES M.S. THESIS T-1338.THOENEN, J.R., 1941, ALUNITE RESOURCES OF THE UNITED STATES: USBM RI-3561, 48 p.CROSS, WHITMAN, AND SPENCER, A.C., 1900, GEOLOGY OF THE RICO MOUNTAINS, COLORADO: USGS 21ST ANN. REPT., PT. 2, P. 32-33, 87, 92-94.NAESER, C.W., AND OTHERS, 1979, PLIOCENE INTRUSIVE ROCKS AND MINERALIZATION NEAR RICO, COLORADO: USGS OF-79-1093, 18 P.HALL, R.B., 1980, ALUNITE--A POTENTIALLY ECONOMIC SOURCE OF ALUMINUN AND POTASH?, IN SCHOWCHOW, S.D., ED., PROCEEDINGS OF THE FIFTEENTH FORUM ON GEOLOGY OF INDUSTRIAL MINERALS: CGS RESOURCE SER. 8, P. 77-88.COLORADO DIV. MINES INF. REPTS.GARDNER, L.S., 1944, UNPUB. REPT. IN USGS FILE.1899, RECON: W. CROSS AND A.C. SPENCER: 21ST ANN. REPT.1943, GEOLMAP: L.S. GARDNER; UNPUB. REPT.CALKIN, W.S., 1970, EVALUATION OF THE ALUNITE OF CALICO PEAK, DOLORES CO. COLO FOR COLORADO CENTRAL MINES: EARTH SCIENCES, INC., OCT. 21, 1970. CONFIDENTIAL REPORT.NEUBERT, J.T., 1992, MINERAL APPRAISAL OF SAN JUAN NATIONAL FOREST, CO: U.S. BUREAU OF MINES MINERAL LAND ASSESSMENT OPEN-FILE REPORT 2-92 (SAMPLES 93-123)