Editing Chatoyancy (section)

==== Cat's eye terminology ====
[[File:Tigers eye chatometry.gif|thumb|Chatoyance on Tiger's Eye]]
When the term "cat's eye" is used to describe a gemstone by itself, it typically refers to cat's eye chrysoberyl <ref>{{Cite web |title=Cymophane gemstone information |url=https://www.gemdat.org/gem-7481.html |access-date=2023-10-20 |website=www.gemdat.org}}</ref>{{Better source needed|reason=It shows that the stone is also called cat's eye but not that it the only gem called cat's eye|date=October 2023}}. It can also be used as an adjective to indicate the chatoyance phenomenon in another stone, for example, cat's eye [[Aquamarine (gemstone)|aquamarine]].