Katiarsite
Katiarsite is an IMA-recognized mineral species in the arsenate class, with the chemical formula KTiO(AsO₄).
It crystallizes in the orthorhombic crystal system (space group Pna2_1). It is a member of the Katiarsite structural group.
Key properties: Mohs hardness 3; specific gravity 3.49; Vitreous luster; optically biaxial.
IMA symbol Kts, IMA status: approved, named in 2014.
Formed in sublimates encrusting basaltic scoria around a volcanic fumarole.
It is found associated with Hatertite, bradaczekite, johillerite, yurmarinite, tilasite, arsmirandite, hematite, tenorite, As-bearing orthoclase, fluorophlogopite, aphthitalite.
The name refers to the mineral’s chemical composition, kalium titanyl arsenate.
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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