Chrysoberyl gemstone mineralogy and jewelry

Origin:

Chrysoberyl is a mineral aluminate belonging to the beryl group. Its chemical formula is BeAl₂O₄. Chrysoberyl was first described in the 18th century and is found in various regions of the world, including Brazil, Madagascar, Russia, and the USA.

Special features:

Chrysoberyl is known for its remarkable colors, which can range from pale yellow to rich green.

A special variety of chrysoberyl is alexandrite, which is known for its unique ability to change color depending on the lighting conditions, typically from greenish in daylight to reddish under artificial light.

Another form is cat's eye chrysoberyl, which stands out for its shimmering effect, also known as chatoyancy. This phenomenon is caused by fine rhinoceros-like inclusions in the crystal.