The month has three birthstones: alexandrite, pearl and moonstone. Alexandrite is a rare variety of mineral that changes color depending on the light, according to the Geological Institute of America.

Alexandrite e7awi 1 Alexandrite Ruby e7awi ... This stone is popular for its vibrant color. Also, peridot is believed to bring good fortune and enhance emotional well-being. It is also thought ...

Alexandrite lasers are a type of solid-state laser that utilize the alexandrite crystal as the gain medium. These lasers are known for their tunability and efficiency, making them suitable for a ...