hyalite

[Lat. hyalus; Gr. hyalos, hyelos = a clear, transparent stone, gla , and lithos =a stone.] Min.: A gla y and transparent or translucent variety of opal, colorle or whitish. It is found in globular concretions and crust. Sometimes called from its discoverer Müller's gla . hy-a-18-, pref . [Lat. hyalus ; Gr. hyalos , hyelos any clear, transparent stone, gla .] Colorle and transparent like gla , resembling or in any way connected with gla . hy-al-o-grăph, s. [HYALOGRAPHY.] An instrument for tracing a design on a transparent surface. hy-a-log-ra-phỹ, s. [Prefix hyalo-, and Gr. graphō =to write.] The art of writing or engraving on gla .