Perlite - Oregon Department of Geology and Mineral IndustriesJuly 1948. Some Economic Aspects of Perlite, by C.B. King, Member AIME: Mining . Perlite Mining and Processing - A New Industry for the Wests by Robert D.perlite mining process,Perlite | ImerysPerlite is a generic term for naturally occurring siliceous rock. . The ore is firstly mined, pre-crushed, ground and graded in the processing plant, which is usually.
perlite mining process