Specimen rich of vivid green , bright millimetric spherulitic aggregates of Annabergite ("Cabrerite") set on a solid matrix.A good sample of this rare Nickel Arsenate. Ex Francesco Bedognč coll.
Formula :
Ni32+[AsO4]2 * 8 H2O
System: monoclinic Hardness:1½-2 Rarity:rare
Strunz id:VII/C.13-80 -
07 - ARSENATES
Name origin: Named after one of the Co-type localities, Annaberg, Saxony, Germany.
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 Specimen weight:52 gr.
 Crystal size:Spherule up to 3,5 mm
 Overall size: 60mm x 48 mm x 25 mm
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