The family tends to display gem phenomena such as chatoyancy and color change; some people say that the only real "cat's eye" is a chatoyant chrysoberyl and anything else has to be identified as a "cat's eye quartz" or whatever type of gem it is..
Chrys"o*ber`yl (?), n. [L. chrysoberyllus, Gr. ; gold + beryl.] Min.
A mineral, found in crystals, of a yellow to green or brown color, and consisting of aluminia and glucina. It is very hard, and is often used as a gem.
© Webster 1913.
Log in or register to write something here or to contact authors.
Need help? firstname.lastname@example.org