Patynite
Patynite is an IMA-recognized mineral species in the silicate class, with the chemical formula NaKCa₄[Si₉O₂₃].
It crystallizes in the triclinic crystal system (space group P-1).
Key properties: Mohs hardness 6; specific gravity 2.7; White streak; Vitreous to silky luster; optically biaxial.
IMA symbol Pty, IMA status: approved, named in 2019.
Found in alluvium derived from diopside-wollastonite skarn formed at the contact of pyroxenite with marmorized limestone.
It is found associated with Charoite, tokkoite, diopside, graphite, monticellite, wollastonite, pectolite, calcite, orthoclase.
The name refers to the Patyn massif, Russia, where the studied material was collected.
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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