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Demantoid
Demantoid
☒

Sardonyx
Sardonyx
☒



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Demantoid
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Sardonyx
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Optical Properties

Luster

Pleochroism

Dispersion

Transparency

Refractive Index

Optic Character

Crystal System

Birefringence

Clarity

 
Adamantine
None
0.06
-
1.880-1.890
-
cubic
-9999
TransparentUlrich Henn and Claudio C. Milisenda
 
-
-
0.01
Translucent
1.530-1.543
-
-
0.008-0.010
Translucent

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Euclase
Sardonyx Vs Euclase

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