Mineral - Aura Quartz

Name Aura Quartz
Class Semi-precious
Category Quartz (with treatment)
Crystal system Hexagonal
Chemical composition Silicon dioxide (SiO₂), coated by vapor deposition of metals (titanium, gold, platinum... depending on the type of Aura)
Hardness (Mohs scale) 7
Transparency Transparent to iridescent
Geographical origin Natural quartz from Brazil, South Africa, or Arkansas (laboratory treated in the United States or China)