Orlovite
Orlovite is an IMA-recognized mineral species in the silicate class, with the chemical formula KLi₂Ti(Si₄O₁₀)(OF).
It crystallizes in the monoclinic crystal system (space group C2). It is a member of the Mica structural group.
Key properties: Mohs hardness 2–3; specific gravity 2.91; White streak; Vitreous to pearly luster; optically biaxial.
IMA symbol Olv, IMA status: approved, named in 2009.
Found in a glacial moraine boulder of 80% coarse-grained quartz.
It is found associated with Pectolite, quartz, baratovite, faizievite, zeravshanite, pyrochlore, fluorite, polylithionite, aegirine, leucosphenite.
The mineral was named to honor Russian mineralogist Yuriy Leonidivich Orlov (1926-1980), former director of the A.E. Fersman Mineralogical museum (1976-1980), specialist in the mineralogy of diamonds.