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Formula: Co3Fe3+2(AsO4)4.11H2O
Hydrated arsenate, smolyaninovite group,
cobalt-bearing mineral
Crystal system: Orthorhombic
Specific gravity: 2.43 to 2.49
Hardness: 2
Colour: Yellow
Environments
Smolyaninovite is an oxidation product of
nickel-cobalt
arsenides. Associated minerals include erythrite,
pharmacolite and quartz
(HOM).
Localities
Bou Azzer mining district, Drâa-Tafilalet Region, Morocco. Smolyaninovite is widely distributed as an oxidation product of
skutterudite, safflorite and
rammelsbergite. The only locality mentioned in the paper summarised in this
article is Bou Azzer
(AM 42.307-308).
Smolyaninovite from the Bou Azzer mining
district - Image
At the type locality, the Khovu-Aksy Ni-Co deposit, Chedi-Kholsky District, Tuva, Russia, smolyaninovite
is associated with erythrite and
heterogenite
(Mindat photo).
Smolyaninovite from the Khovu-Aksy Ni-Co
deposit - Image
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