Formula : K2(Na,Ca)2Li3Be6[OH/(PO4)3]2 * H2O
System: hexagonal Hardness:3½ Rarity:very rare
Strunz id:VII/D.2-10 -
PHOSPHATES, ARSENATES and VANADATES
Name origin: Tip Top Mine (Tip Top pegmatite), Fourmile, Custer Mining District, Custer Co., South Dakota, USA
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