water sapphire

English

Etymology

Equivalent to French saphir d’eau.

Noun

water sapphire (plural water sapphires)

1. (mineralogy) A deep blue variety of iolite, sometimes used as a gem.

Part or all of this entry has been imported from the 1913 edition of Webster’s Dictionary, which is now free of copyright and hence in the public domain. The imported definitions may be significantly out of date, and any more recent senses may be completely missing.
(See the entry for “water sapphire”, in Webster’s Revised Unabridged Dictionary, Springfield, Mass.: G. & C. Merriam, 1913, →OCLC.)