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Hercynite
Hercynite

Sardonyx
Sardonyx



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Hercynite
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Sardonyx
Optical Properties

Luster

Pleochroism

Dispersion

Transparency

Refractive Index

Optic Character

Crystal System

Birefringence

Clarity

 
Vitreous
-
0.03
Translucent
1.80-1.83
-
Isometric Hexoctahedral H-M Symbol (4/m 3 2/m) Space Group: F d3m
-9999
Translucent
 
-
-
0.01
Translucent
1.530-1.543
-
-
0.008-0.010
Translucent