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Star Ruby
Star Ruby
☒

Amethyst
Amethyst
☒



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Star Ruby
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Amethyst
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Optical Properties

Luster

Pleochroism

Dispersion

Transparency

Refractive Index

Optic Character

Crystal System

Birefringence

Clarity

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

Compare Blue Gemstones

Blue Gemstones

Vivianite
Vivianite
Wardite
Wardite
Watermelon Tourmaline
Watermelon Tourmaline
Amethyst
Starlite
Amethyst Vs Starlite
Amethyst
Strontium Titanate
Amethyst Vs Strontium Titanate
Amethyst
Tortoiseshell
Amethyst Vs Tortoiseshell

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