Zircon
ID: 97
Zircon
Chemical Formula
ZrSiO4
Hardness (Mohs)
7.5
Crystal System
Tetragonal
Streak
white
Luster
Adamantine
Diaphaneity
Transparent to Translucent
Color
Brown, Reddish brown, Colorless, Gray, Green.
Crystal Habit / Mode of Occurrence
Prismatic - Crystals Shaped like Slender Prisms. Tabular - Form dimensions are thin in one direction.
Fun Facts
Renowned gem buyer, George Kunz, proposed that zircon be called “starlite” but the name didn't stick.