1 Optical Properties
1.1 Luster
Vitreous, Adamantine, Vitreous, Adamantine
Not Available
1.2 Pleochroism
None
Yellow to pink/deep carmineMichael OâDonoghue
1.3 Dispersion
1.4 Transparency
Transparent, Transparent to translucent
Gemmological Tables (2004) More from other references
1.5 Refractive Index
1.730-1.8951.328-1.332
1
3.25
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
1.8 Birefringence
Not AvailableNot Available
0
0.296
1.9 Clarity
Transparent
TransparentUlrich Henn and Claudio C. Milisenda