| Reference | {Deposit:: BURGER, JOHN, 1990, FELDSPAR & NEPHELINE SYENITE--AT THE MERCY OF GLASS MARKETS: INDUSTRIAL MINERALS, NO. 275, P. 21-33.}{Deposit:: CONSEJO DE RECURSOSO MINERALES, 1992, GEOLOGICAL-MINING MONOGRAPH OF THE STATE OF GUANAJUATO: SECRETARIA DE ENERGIA, MINAS E INDUSTRIA PARASTATAL, 136 P.}{Other Database:: CIMRI}{Reserve-Resource:: CRM, 1992.} |