Formula :
Zn2[OH/PO4]
System: triclinic Hardness:4 Rarity:rare
Strunz id:7B.6-50 -
7 - PHOSPHATES, ARSENATES, VANADATES
Name origin: Named after Percy Coventry Tarbutt, a Director of the Broken Hill Exploration Company who collected some of the first specimens at Broken Hill (now Kabwe), Zambia.
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