Kononovite
Kononovite is an IMA-recognized mineral species in the sulfate class, with the chemical formula NaMg(SO₄)F.
It crystallizes in the monoclinic crystal system (space group C2/c). It is a member of the Titanite structural group.
Key properties: Mohs hardness 3; specific gravity 2.91; White streak; Vitreous luster; optically biaxial.
IMA symbol Knv, IMA status: approved, named in 2013.
Encrusting basaltic scoria around an active fumarole, probably by reaction of volcanic gas with minerals in the scoria.
It is found associated with Langbeinite, hematite, anglesite, euchlorine.
The mineral was named to honor Russian mineralogist Oleg V. Kononov (born 1932), Moscow State University, Russia.
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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