vitreous luster

vitreous luster

[′vi·trē·əs ‚ləs·tər]
(optics)
A type of luster resembling that of glass.
References in periodicals archive ?
Calcite-Il crystals never have the high vitreous luster typical of Calcite-I; rather, almost all Calcite-II has medium to greasy luster.
They have very high vitreous luster except on their {010} faces, where the luster is pearly, as is typical for the species.
Bario-olgite is transparent and pale green, with vitreous luster and imperfect cleavage.
The mineral is transparent, with a dark cherry-red color, sometimes with a brownish tint, and a vitreous luster.
The mineral is transparent and colorless, and has a vitreous luster.
Natrosilite is a mica-like mineral: it is elastic, with perfect one-directional cleavage and very pronounced pearly to vitreous luster on fresh cleavage surfaces.
Hubeite is dark brown to pale brown, depending on crystal size, with a pale orange-brown streak, a vitreous luster and no observable fluorescence under ultraviolet light.
Hubeite has a pale orange-brown streak, a vitreous luster and no observable fluorescence under ultraviolet light.
0 mm in diameter composed of thin, rounded colorless to very pale yellow plates having a vitreous luster.
Individual crystals are colorless, but the clusters appear white and opaque, with a vitreous luster.
5-1 mm long, with a vitreous luster, and in a hydrothermalite pod as dull, white, divergent, fibrous sprays.