RAS Bld. 18/2 Leninsky Prospekt, Moscow, 117071, Russia phone (7495) 9520067; fax (7495) 9524850...mineral@fmm.ru website: www.fmm.ru Printed in Russia Ocean Pictures Ltd 4871 S. Dudley St., Littleton...obtained (Sokolova, Konovalova, 1981). However, there is no strict evidence that 2.25 1.443 Walenta, 1978 1...Unfortunately, in the aforementioned work there are no quantitative data about individual rareearth elements...barite and fluorite veins (Walenta, 1978). There is no quantitative data on the yttrium content in the mineral |