Grigorievite
Grigorievite is an IMA-recognized mineral species in the vanadate class, with the chemical formula Cu₃Fe³⁺₂Al₂(VO₄)₆.
It crystallizes in the triclinic crystal system (space group P-1). It is a member of the Howardevansite structural group.
Key properties: Mohs hardness 5; specific gravity 3.67; Reddish brown streak; Semi-metallic. Anisotropism: Weak luster.
IMA symbol Ggv, IMA status: approved, named in 2012.
A sublimate on basaltic scoria deposited from fumarolic gas.
It is found associated with Hematite, bannermanite, ziesite.
The mineral was named to honor Professor Dmitry Pavlovich Grigoriev (1909-2003), Saint Petersburg Mining Institute, Russia, for his contributions to the mineralogical sciences.
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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