κρυσταλλίζω G2929
krystallízō · kroos-tal-lid'-zo · Verb
from κρύσταλλος; to make (i.e. intransitively, resemble) ice ("crystallize"):--be clear as crystal.
1 Occurrence in the King James Bible
Revelation 21:11Having the glory of God: and her light was like unto a stone most precious, even like a jasper stone, clear as crystal;