kimzeyite

kimzeyite

[′kim·zē‚īt]
(mineralogy)
Ca3(Zr,Ti)2(Al,Si)3O12 A mineral of the garnet group.
References in periodicals archive ?
Among the specimens were brilliantly adamantine black "sixling" groups of rutile to 4 cm; brookite of several sorts, including canted, house-of-cards piles of bright black tabular crystals on quartz; clusters of sharp black, glossy, octahedral crystals of Fe-rich spinel, with individuals to 5 mm on edge; simple-octahedral black magnetite crystals with rounded, brown, faintly lustrous kimzeyite crystals to 4 mm resting on them; similar specimens with baddeleyite pseudomorphs after kimzeyite, also brown and equant, to 1 cm; sharp lustrous brown perovskite crystals to 1.