Rare Chrysoberyl Crystal/Espiritu SantoThe name Chrysoberyl is from the Greek words (chrysos and beryllos), meaning a gold white spar. Although the word "beryl" is in the word Chrysoberyl, they are two completely different gems. Chrysoberyl is formed from the same elements that Alexandrite and Cymophane (Cat's Eye) are comprised of. It is very similar to Alexandrite but lacks the photochromic color changing properties of Alexandrite. It is a rare gemstone that is transparent yellow green.