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Common Opal
Common Opal
☒

Andesine
Andesine
☒



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Andesine
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Optical Properties

Luster

Pleochroism

Dispersion

Transparency

Refractive Index

Optic Character

Crystal System

Birefringence

Clarity

 
-
-
0.01
Translucent
1.37-1.52
-
-
-9999
Translucent
 
Vitreous
colorless.
0.70
Transparent, Translucent, Transparent to translucent
1.543-1.564
Biaxial/+
Triclinic
0.007-0.011
Transparent

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Blue Gemstones

Fluorapatite
Fluorapatite
Gadolinium Gallium Garnet
Gadolinium Gallium Garnet
Gahnite
Gahnite
Andesine
Covellite
Andesine Vs Covellite
Andesine
Cyprine of Berzelius
Andesine Vs Cyprine of Berzelius
Andesine
Dravite
Andesine Vs Dravite

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