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Formula: CaNi2(AsO4)2.2H2O
Hydrated arsenate,
tsumcorite group,
nickel-bearing mineral
Crystal System: Monoclinic
Specific gravity: 4.45 calculated
Hardness: 4½
Streak: Light brown to yellow
Colour: Brown, red-brown, yellow
Common impurities: Bi
Environments
Localities
At the type locality, the Pucher Shaft, Wolfgangmaßen mines, Wolfgangmaßen, Neustädtel, Schneeberg, Erzgebirgskreis,
Saxony, Germany, nickellotharmeyerite occurs as minute tabular crystals to 0.1 mm in
quartz casts of decomposed nickel and
cobalt arsenides, in the oxidation
zone of the deposit. Associated minerals include arseniosiderite,
bariopharmacosiderite,
ferrilotharmeyerite,
mawbyite, quartz and
zeunerite
(Mindat).
Also cobaltlotharmeyerite,
galena and plumbogummite
(HOM).
Nickellotharmeyerite from the Pucher Shaft -
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At the Km 3 open pit, Km 3 mines, Km 3, Lavrion Mining District, Lavreotiki, East Attica, Attica, Greece,
nickellotharmeyerite occurs in the oxidation zone of the polymetallic ore deposit. Associated minerals include
nickeltsumcorite,
annabergite,
nickelaustinite, gaspéite,
calcite, dolomite,
aragonite, quartz,
goethite, cerussite,
arseniosiderite, mimetite,
oxyplumboroméite, and
manganese oxides/hydroxides
(HOM).
Nickellotharmeyerite from the Km 3 open pit -
Image
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