A beryllium aluminum oxide, known for its hardness and gem varieties like Alexandrite (color-change) and Cat's Eye. It's a stone of protection, discipline, and good fortune, enhancing personal power and compassion.
Green, Yellow, Brown, Grey, rarely Blue or Red, (Alexandrite: color-change, Cat's Eye: chatoyancy)
Chrysoberyl is classified as a oxide minerals mineral which typically crystallizes in the orthorhombic system. Its chemical formula is BeAl2O4. Common crystal habits include crystals tabular or short prismatic, prominently striated.