Herderite

Herderite is a phosphate mineral belonging to the apatite, phosphate group, with formula CaBe(PO₄)(F,OH). It forms monoclinic crystals, often twinned and variable in colour from colourless through yellow to green. It forms a series with the more common hydroxylherderite, which has more hydroxyl ion than fluoride.

单词	Hydroxylherderite
释义	Hydroxylherderite 英语百科 Herderite Herderite is a phosphate mineral belonging to the apatite, phosphate group, with formula CaBe(PO₄)(F,OH). It forms monoclinic crystals, often twinned and variable in colour from colourless through yellow to green. It forms a series with the more common hydroxylherderite, which has more hydroxyl ion than fluoride.
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Hydroxylherderite

Herderite