Big Horn Mountains Perlite Deposit

ALLEN, G.B., 1985, ECONOMIC GEOLOGY OF THE BIG HORN MOUNTAINS OF WEST-CENTRAL ARIZONA: ARIZONA BUREAU OF MINES AND MINERAL TECHNOLOGY OPEN-FILE REPORT 85-17, 140 P.PEIRCE, H.W., 1990, ARIZONA GEOLOGICAL SURVEY INDUSTRIAL MINERALS CARD FILE.PHILLIPS, K.A., 1987, ARIZONA INDUSTRIAL MINERALS: ARIZONA DEPARTMENT OF MINES AND MINERAL RESOURCES MINERAL REPORT 4, 185 P.CIMRI