The product under consideration is fluorspar of both acid and ceramic grade presented in filter cake or in powder form, with a content of 97 % or less of calcium fluoride (CaF2) ... as well as with a content of more than 97 % of calcium fluoride (CaF2) ... In order to produce fluorspar, ore has to be mined, crushed and floated. The result is fluorspar with various calcium fluoride contents. Fluorspar in filter cake form and in powder form differs only in its moisture content, but is perfectly interchangeable in its use. Fluorspar is used essentially as a feedstock in the manufacture of hydrofluoric acid.
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