hyalo-, hyal-

(Greek: glass, glassy; transparent; pertaining to the vitreous humor or surrounding membrane)

hyalophagia, hyalophagy
The eating or chewing of glass.
hyalophane
hyalophobia, hyelophobia, nelophobia (s) (noun) (no plural)
A fear of crystal or glass: When Linda cut herself very badly with a broken piece of mirror, she had to go to hospital for an operation, and thereafter she dreaded even getting near anything made of this material and developed hyalophobia.
hyaloplasm
hyalopterous
hyalosiderite
hyalosome
hyalospermous
hyalosporous
hyalotekite
hylin
keratohyalin

Other glass words. More "glass" words are at this vitreo-, vitr- family unit.