Luster
Pearly
Vitreous
Pleochroism
-
Strong dichroism: yellow green Lazzarelli
Dispersion
0.040.01
0.005
1
👆🏻
Transparency
Transparent, Translucent
Transparent, Translucent, Transparent to translucent
Refractive Index
1.633-1.8751.565-1.602
1
3.25
👆🏻
Optic Character
-
-
Crystal System
Trigonal
Hexagonal
Birefringence
0.2420.0040-0.0070
0
0.296
👆🏻
Clarity
Transparent
-