Formula :
NaAl3[(OH)2/PO4]2 * 2 H2O
System: tetragonal Hardness:5 Rarity:not common
Strunz id:VII/D.51-10 -
PHOSPHATES, ARSENATES and VANADATES
Name origin: Named after Henry Augustus Ward (1834-1906), Professor of Natural Sciences, University of Rochester, Rochester, New York, USA. He was also a collector and founder of Ward s Natural Science Establishment in Rochester, which deals in natural history objects.
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