Vlodavetsite
Vlodavetsite is an IMA-recognized mineral species in the sulfate class, with the chemical formula Ca₂Al(SO₄)₂F₂Cl·4H₂O.
It crystallizes in the tetragonal crystal system (space group I4/m).
Key properties: Vitreous luster; optically uniaxial.
IMA symbol Vlo, IMA status: approved, named in 1993.
A product of low-temperature hydration of minerals on the fracture walls of volcanic fumaroles.
It is found associated with Gypsum, sellaite, bischofite, hydrophilite, spinel.
The mineral was named to honor Vladimir Ivanovich Vlodavets (1893–1993), volcanologist who founded the Kamchatka volcanological station.
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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