|The Very Highest Quality Chrysoberyl Information...|
Most chrysoberyl is green or yellow-green, but some is brown. The rare alexandrite shows a colour change from green to red, and cat's eye has a strongly banded appearance which is well described by its name, and is also usually green or yellow-green.
Chrysoberyl was very popular in Victorian and Edwardian times, when it was often inaccurately called chrysolite. It is possible that supply was more plentiful around that time, certainly it is not frequently seen nowadays.
|Chemical Composition and Name||BeAl2O4 - Beryllium Aluminium Oxide|
|Refractive Index||1.742 - 1.749 to 1.750 - 1.757|
|Bi-refringence||0.008 - 0.009|
|Other Optical Properties||Biaxial|
|Specific Gravity||3.68 - 3.78|
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