Optical Properties
Luster
Vitreous, Greasy
Waxy
Pleochroism
Weak: pale yellow yellow
AbsentWalter Schumann
Dispersion
0.02
22
None
Transparency
Gemmological Tables (2004) More from other references
Gemmological Tables (2004) More from other references
Refractive Index
1.627-1.639
1.640-1.680
Optic Character
Biaxial/+
Not Available
Crystal System
Orthorhombic
Amorphous
Birefringence
0.006
Not Available
Clarity
TransparentUlrich Henn and Claudio C. Milisenda
Gemmological Tables (2004) More from other references
