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Heliotrope
Heliotrope

Zircon
Zircon



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Heliotrope
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Zircon
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Optical Properties

Luster

Pleochroism

Dispersion

Transparency

Refractive Index

Optic Character

Crystal System

Birefringence

Clarity

 
Vitreous
-
0.01
-
1.53-1.54
-
Trigonal
0.004
-
 
Adamantine
Weak
0.04
Transparent
1.810-2.024
-
tetragonal
0.047-0.055
Transparent