Luster
Waxy, Silky, Resinous, Greasy
Vitreous
Pleochroism
-
Weak; dark emerald green
Dispersion
0.010.04
0.005
1
👆🏻
Transparency
TranslucentHerve Nicolas Lazzarelli
TranslucentHerve Nicolas Lazzarelli
Refractive Index
1.530-1.5751.644-1.720
1
3.25
👆🏻
Optic Character
-
-
Crystal System
-
Trigonal
Birefringence
-99990.051-0.053
0
0.296
👆🏻
Clarity
TranslucentHerve Nicolas Lazzarelli
TranslucentHerve Nicolas Lazzarelli