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Ruby
Ruby

Agrellite
Agrellite



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Ruby
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Agrellite
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Optical Properties

Luster

Pleochroism

Dispersion

Transparency

Refractive Index

Optic Character

Crystal System

Birefringence

Clarity

 
Vitreous, Adamantine
Strong: purplish-red
0.02
Transparent, Translucent, Transparent to opaque
1.762-1.778
-
Trigonal
0.008
Transparent
 
Pearly
colorless.
0.01
-
1.567
-
Triclinic
0.014
-