| Reference | {Deposit:: PHILLIPS, K.A., 1987, ARIZONA INDUSTRIAL MINERALS: ARIZONA DEPARTMENT OF MINES AND MINERAL RESOURCES REPORT 4, 185 P.}{Deposit:: PARKER, R.L., 1963, NIOBIUM AND TANTALUM IN THE US: U.S. GEOLOGICAL SURVEY MINERAL INVESTIGATIONS RESOURCE MAP MR-36.}{Other Database:: CIMRI} |