krustallizo describes radiance presented as clear as crystal in Revelation 21:11.

Its single attested use describes radiance in comparison with something clear as crystal.

1. Crystal-like clarity in radiance · dominant

   In Revelation 21:11, κρυσταλλίζοντι is a present active participle in a comparison describing radiance; the APB renders the scene as a precious jewel, "clear as crystal."

   Revelation 21:11

In the Anselm Project Bible: In Revelation 21:11, the APB presents the comparison with the phrase "clear as crystal," though the translation does not align English words to the Greek token.