Paraberzeliite
Paraberzeliite is an IMA-recognized mineral species in the arsenate class, with the chemical formula NaCaCaMg₂(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 3.811; Pale brownish to pale pinkish streak; Vitreous luster; optically biaxial.
IMA symbol Pbzl, IMA status: approved, named in 2018.
Forms as a sublimate at an active volcanic fumarole.
It is found associated with Anhydrite, diopside, hematite, svabite, berzeliite-schäferite series, calciojohillerite, magnesioferrite, ludwigite, fluorapatite, powellite, baryte.
The prefix identifies the dimorphism of this new mineral with the arsenate garnet berzeliite.
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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