Zincobradaczekite
Zincobradaczekite is an IMA-recognized mineral species in the arsenate class, with the chemical formula NaCuCuZn₂(AsO₄)₃.
It crystallizes in the monoclinic crystal system (space group C2/c). It is a member of the Alluaudite structural group.
Key properties: Mohs hardness 3.5; specific gravity 4.713; Pale bluish streak; Vitreous luster; optically biaxial.
IMA symbol Zbdc, IMA status: approved, named in 2016.
A sublimate in active volcanic fumaroles.
It is found associated with Bradaczekite, lammerite, lammerite-β, borisenkoite, mcbirneyite, sanidine, hematite, tenorite, pseudolyonsite, lyonsite, starovaite, rutile, tripuhyite.
Indicates the zincian analogue of bradaczekite.
Index entry. This entry combines official IMA/RRUFF species data with published physical-property data — a full written entry hasn’t been published yet.
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