Formula :
Ni[CO3] * 6 H2O
System: monoclinic Hardness:2½ Rarity:rare
Strunz id:V/D.1-40 -
NITRATES, CARBONATES and BORATES
Name origin: In honour of Henry Hellyer (1791– September 2, 1832), first Surveyor-General of the Van Diemen’s Land Company and explorer of northwestern Tasmania.
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