opalesce

verbs

reflect light or colors like an opal
"Distant clouds opalesce like pale brocade"; "raindrops caught in a sunbeam seem to opalesce"
opalesce
is derived from
opalescent
is derived from
opalescence
is a type of (narrower)
be bright by reflecting or casting light
"Drive carefully--the wet road reflects"
reflect, shine
exhibit a play of colors like that of an opal
"This nitrate opalesces under certain conditions"
opalesce
is derived from
opalescent
is derived from
opalescence
is a type of (narrower)
be iridescent
"The corals iridesced under the surface of the clear water"
iridesce