Definition of hyalite
: a colorless opal that is clear as glass or sometimes translucent or whitish
Origin and Etymology of hyalite
German Hyalit, from Greek hyalos
First Known Use: 1794See Words from the same year
Learn More about hyalite
Seen and Heard
What made you want to look up hyalite? Please tell us where you read or heard it (including the quote, if possible).