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Amethyst
Amethyst
☒

Star Ruby
Star Ruby
☒



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Amethyst
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Star Ruby
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Optical Properties

Luster

Pleochroism

Dispersion

Transparency

Refractive Index

Optic Character

Crystal System

Birefringence

Clarity

 
Vitreous
None
0.01
Transparent, Transparent to translucent
1.544-1.553
-
Trigonal
0.009
Transparent
 
-
-
0.02
Transparent, Translucent
1.757-1.780
-
-
0.007-0.010
Transparent

Compare Semi Precious Gemstones

Semi Precious Gemstones

Garnet
Garnet
Grossular
Grossular
Hackmanite
Hackmanite
Star Ruby
Chrome Pyrope
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Star Ruby
Chrome Tourmaline
Star Ruby Vs Chrome Tourmaline
Star Ruby
Citrine
Star Ruby Vs Citrine

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