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Formula: BiNi2(AsO4)2(OH).H2O
Hydrated arsenate,
tsumcorite group, bismuth-
and nickel- bearing mineral
Crystal System: Monoclinic
Specific gravity: 5.23 calculated
Hardness: 4 to 4½
Streak: White to pale brown
Colour: Light brown to greenish brown
Environments
Localities
At the Pucher Shaft, Wolfgangmaßen mines, Wolfgangmaßen, Neustädtel, Schneeberg, Erzgebirgskreis, Saxony, Germany,
schneebergite and nickelschneebergite were discovered on samples
from the former mining area; associated minerals are scorodite,
bariopharmacosiderite,
ferrilotharmeyerite,
preisingerite and waylandite.
Schneebergite and nickelschneebergite are very similar in
appearance; they form crystal aggregates up to 1 mm and small tabular crystals to 0.5 mm. There is a probably complete
solid solution involving schneebergite, nickelschneebergite,
cobaltlotharmeyerite and
nickellotharmeyerite
(EJM 14.1.115-126).
Nickelschneebergite from the Pucher Shaft -
Image
At the type locality, the Roter Berg mining district, Zschorlau, Erzgebirgskreis, Saxony, Germany,
nickelschneebergite occurs as aggregates of tabular to lath-like or acicular micro-crystals to 0.5 mm in length,
in quartz casts of decomposed cobalt
and nickel arsenides. Associated
minerals include schneebergite,
quartz, scorodite,
bariopharmacosiderite,
ferrilotharmeyerite,
preisingerite and waylandite
(HOM, Mindat).
Nickelschneebergite from Roter Berg -
Image
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