Chemical Formula
Al2O3
Color
Red
Hardness
9
Crystal System
Hexagonal
Refractive Index
1.76 - 1.77
SG
3.9 - 4.1
Transparency
Transparent to opaque
Double Refraction
.0008
Luster
Vitreous to adamantine
Cleavage
None, but may exhibit parting
Mineral Class
Corundum
Heat Processed Faceted Rub...
Heat Processed Ruby Zoisit...
Ruby Zoisite Beads 12 mm
Ruby Zoisite Beads Bracele...
Ruby Zoisite Free Shape Pe...
Ruby Zoisite Pendant
Ruby Zosite Heart Overlay ...
Ruby Zoisite 8 mm Beads Br...
Ruby Zoisite 8 mm Beads Bu...