Sequential determination of calcium chemical phases in gypsum-associated fluorite ores using ICP-OES.

ABSTRACT: Fluorite is a crucial non-metallic strategic mineral resource, commonly occurring in hydrothermal vein-type and sedimentary metamorphic fluorite deposits. Sedimentary metamorphic fluorite (CaF₂) frequently coexists with associated minerals, such as gypsum (CaSO₄·2H₂O) and calcite (CaCO₃). Accurately determining the contents of calcium sulphate, calcium carbonate, and calcium fluoride is essential for understanding mineralization mechanisms and for guiding the development of subsequent beneficiation and metallurgical processes. Existing analytical methods for fluorite are primarily developed for single-type deposits. They generally focus on the determination of calcium carbonate and calcium fluoride while not accounting for the calcium sulphate ph

SUBMITTER: Wang X 

PROVIDER: S-EPMC12818934 | biostudies-literature | 2026 Jan

REPOSITORIES: biostudies-literature