It crystallises in the 4th (rhombic) system, and its lustre is vitreous.
The ice was black and clear and vitreous on the forest pools.
The vitreous body plays a part in the refraction of the light.
The sulphate is, in this case, charged with vitreous electricity.
His striated eyeballs had a vitreous look; they were as hard as marbles.
The air was of the same biting stillness and vitreous transparency.
He did not even seem to know I watched him gliding through the vitreous deep.
If the vitreous should present, the lens should be removed with the vectis.
This vitreous body is enclosed in an expansion of the optic nerve.
Borax dried at a gentle heat, and then melted by increasing the heat until it forms a vitreous mass on being cooled.