Xanthiosite

Xanthiosite is a nickel arsenate mineral. It was first discovered in Germany in 1858^{[citation needed]} and named by Gilbert Joseph Adam in 1869.^[3]

Xanthiosite
Xanthiosite and aerugite
General
Category	Arsenate mineral
Formula	Ni3(AsO4)2
IMA symbol	Xth[1]
Strunz classification	8.AB.25
Crystal system	Monoclinic
Crystal class	Prismatic (2/m) (same H-M symbol)
Space group	P21/a
Identification
Formula mass	453.91 g/mol
Color	Golden yellow
Mohs scale hardness	4
Diaphaneity	Translucent
Specific gravity	5.37–5.47
References	[2][3]

Deposits

The type locality of Xanthiosite is Johanngeorgenstadt,^[3] it may also be found in Greece.^{[citation needed]}