Arsenatrotitanite
Arsenatrotitanite is an IMA-recognized mineral species in the arsenate class, with the chemical formula NaTi(AsO₄)O.
It crystallizes in the monoclinic crystal system (space group C2/c). It is a member of the Titanite structural group.
Key properties: Mohs hardness 5.5; specific gravity 3.95; White streak; Vitreous luster; optically biaxial.
IMA symbol Anttn, IMA status: approved, named in 2016.
Forms as a sublimate at an active volcanic fumarole.
It is found associated with Orthoclase, tenorite, hematite, johillerite, bradaczekite, badalovite, calciojohillerite, arsmirandite, tilasite, svabite, cassiterite, pseudobrookite, rutile.
Indicates an arsenate of sodium (natrium in Latin) and titanium isostructural with titanite.
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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