Reference | {Geology:: HOFMAN, R & H. SCHWRNBERY. MINEROLOGY OF THE HYDROTHERMAL}{Geology:: BARITES IN GERMANY, MONOGRAPH SERIES OF MINERAL}{Geology:: DEPOSITS NO. 17, 1979.}{Geology:: PILGER, A., ET AL., DIEBARYTGRANGE DER GMBE DREISLAR}{Geology:: IN OSTLICHEN SEWERLAND, ERZMETAL, VOL. 18, 1965, PP 327-84}{Workings:: INDUSTRIAL MINERALS. WORLD BARYTE PRODUCERS - A REVIEW}{Workings:: JUL 1978, P. 43.} |