Pure fluorspar, CaF2, contains 51% calcium and 49% fluoride. Three principal grades are available commercially; acid grade with 97%+ CaF2; ceramic grade 85–96% CaF2; and metallurgical grade 60%+ CaF2. The above reserve figures refer to 100% CaF2 equivalent. On the same basis, the reserve base is 310 million tonnes.
KeywordsDioxide Foam Hydrocarbon Fluoride Geochemistry
Unable to display preview. Download preview PDF.