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Alexandrite
Alexandrite
☒

Bort
Bort
☒



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Alexandrite
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Bort
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Optical Properties

Luster

Pleochroism

Dispersion

Transparency

Refractive Index

Optic Character

Crystal System

Birefringence

Clarity

 
Vitreous
-
0.02
Transparent, Transparent to nearly opaque
1.739-1.770
Biaxial/+
Orthorhombic
0.007-0.010
Transparent
 
-
-
-
-
-9999
-
-
-9999
-

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