Oka Mine

BRISKIN, IRA, "NIOBEC CONSIDERS START OF PENTOXIDEPRODUCTION", AMERICAN METALS MARKET, AUGUST 20, 1981, P12.PICKETT, D.E., "ST. LAWRENCE COLUMBIUM AND METALSCORPORATION, MILLING PRACTICE IN CANADA", THE CANADIANINSTITUTE OF MINING AND METALLURGY, PAGE 332."TECHNICAL NIOBIUM OXIDE FROM PYROCHLORE", THE CANADIANMINING AND METALLURGICAL BULLETIN, SEPTEMBER, 1975, PP85TO 90.GOLD, D.P., VALLIE M. AND CHARETTE, J.P., "ECONOMIC GEOLOGYAND GEOPHYSICS OF THE OKA ALKALINE COMPLEX, QUEBEC", THECANADIAN MINING AND METALLURGICAL BULLETIN, OCTOBER, 1967,PP 1131 TO 1144.WOOLLEY, A.R. 1987, ALKALINE ROCKS AND CARBONATITES OF THEWORLD. PART I; NORTH AND SOUTH AMERICA, UNIVERCITY OFTEXAS PRESS, AUISTON, TEXAS, PP49 TO 50."OPENING A NEW SOURCE OF COLUMBIUM RAW MATERIAL", MININGMETHODS IN THE AMERICAS, GORDON AND BEACH, 1964, PP479TO 486."THE PRODUCTION OF PYROCHLORE CONCENTRATE AT ST. LAWRENCECOLUMBIYM AND METALS CORP.", THE CANADIAN MINING ANDMETALLURGICAL BULLETIN, MARCH, 1965, PP281 TO 289."STOPING FROM PIT WALLS WHILE DEVELOPING THE UNDERGROUNDMINE AT ST. LAWRENCE COLUMBIUM", THE CONADIAN MINING ANDMETALURGICAL BULLETIN, MARCH 1967, PP333 TO 338.E&MJ, "COLUMBIUM", SEPTEMBER, 1969.