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Sardonyx
Sardonyx

Smithsonite
Smithsonite



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Sardonyx
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Smithsonite
1 Optical Properties
1.1 Luster
Not Available
Vitreous, Pearly
1.2 Pleochroism
Not Available
AbsentWalter Schumann
1.4 Dispersion
NA0.01
Fluorite Optical Properties
0.007 1
2.5 Transparency
Translucent
Translucent
2.6 Refractive Index
1.530-1.5431.620-1.850
Agate Opal
1 3.25
2.10 Optic Character
Not Available
Not Available
2.11 Crystal System
Not Available
Trigonal
2.12 Birefringence
0.008-0.0100.223-0.227
Achroite
0 0.296
3.4 Clarity
Translucent
Translucent