chlorapatite
mineral
Quick Summary
Chlorapatite is a common mineral belonging to the apatite series of phosphate minerals. It is a calcium phosphate chloride with the chemical formula Ca5Cl(PO4)3. In chlorapatite, chlorine predominates over fluorine, hydroxyl, and carbonate ions within its crystal structure.12
Apatite minerals are the primary source of phosphorus globally. While often found as glassy crystals, apatite is relatively soft (Mohs hardness 5) and not typically used as a gemstone. Chlorapatite itself is considered comparatively rare.3
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