Specific Gravity: 2,68-2,72
Crystal System: hexagonal
Index of Refraction: 1,570-1,575
Heliodor is a variety of the Beryl group. It is a compound of silicate, beryl, and aluminum. Its color ranges from bright yellow to golden yellow to greenish yellow.
Heliodor is mined in Sri Lanka, Namibia, Brazil, and Madagascar.