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https://mineralexpert.org/mineral-photo/fluorapatite-fluorite-krupka-czech-republic-5661 Fluorapatite, Fluorite — Mineral Expert Mineral photo of Fluorapatite, Fluorite from Krupka, Czech Republic fluorapatitefluoritemineralexpert https://acs.digitellinc.com/p/s/effect-of-magnesium-on-fluorapatite-precipitation-in-groundwater-matrix-525456 Effect of magnesium on fluorapatite precipitation in groundwater matrix - American Chemical Society Widespread fluoride (F) contamination in groundwater is affecting millions of people across the world. F can be immobilized by the transformation of calcite... american chemical societyeffectmagnesiumfluorapatiteprecipitation