Chrysoberyl
Beryllium aluminum oxide mineral known for its high refractive index.
Chrysoberyl is a beryllium aluminum oxide mineral known for its high refractive index and dispersion. It naturally occurs in yellow-green to brown hues, with a rare variety called Alexandrite displaying color change properties—appearing green in daylight and red or purple under incandescent light. Its durability makes it suitable for jewelry.
Built by Tim Jones