- Color: blue to greenish blue
- Hardness: 7.5
- Refractive index: 1.57 - 1.59
- Density: 2.67 - 2.75
- Chemical composition: Be3Al2(SiO3)6
- Crystal structure: hexagonal
- Origins: Brazil, Nigeria, Madagascar, Mozambique, Pakistan, Russia, India, Sri Lanka, China.
Aquamarine is a light blue or light greenish-blue variety of beryl, with darker stones being more expensive. Heat enhancement is often applied to enhance the blue color of aquamarines, but only clean pieces can be heated.