benificiation of mangan
Oct 01, 1981· Microscopic study of thin sections and also electron-probe microanalysis re- vealed for the first time the presence of discrete apatite grains in the man- ganese ores of central India. In the Ramtek and Goberwahi ores, isolated grains of mangan-apatite are also present. Microhardness in VHN varies from 950--1150 for all the samples.