fire opal

(redirected from fire opals)
Also found in: Dictionary, Thesaurus.

fire opal

[′fīr ‚ō·pəl]
(mineralogy)
A translucent or transparent, orangy-yellow, brownish-orange, or red variety of opal that gives out fiery reflections in bright light and that may have a play of colors. Also known as pyrophane; sun opal.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.