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Malachite
Malachite
☒

Ruby
Ruby
☒



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Malachite
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Ruby
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Optical Properties

Luster

Pleochroism

Dispersion

Transparency

Refractive Index

Optic Character

Crystal System

Birefringence

Clarity

 
Adamantine, Vitreous, Silky
-
0.04
Opaque
1.655-1.909
-
monoclinic
0.254
-
 
Vitreous, Adamantine
Strong: purplish-red
0.02
Transparent, Translucent, Transparent to opaque
1.762-1.778
-
Trigonal
0.008
Transparent