Herderite

Her´der`ite

(Min.) A rare fluophosphate of glucina, in small white crystals.

herderite

[′hər·də‚rīt] (mineralogy) CaBe(PO₄)(F,OH) A colorless to pale-yellow or greenish-white mineral consisting of phosphate and fluoride of calcium and beryllium; hardness is 7.5-8 on Mohs scale, and specific gravity is 3.92.

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