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Serandite
Serandite
☒

Sillimanite
Sillimanite
☒



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Serandite
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Sillimanite
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Optical Properties

Luster

Pleochroism

Dispersion

Transparency

Refractive Index

Optic Character

Crystal System

Birefringence

Clarity

 
Vitreous, Silky, Greasy
-
0.01
-
1.672-1.708
-
-
0.036
TransparentUlrich Henn and Claudio C. Milisenda
 
Vitreous, Subadamantine, Silky
Colourless to pale brown to yellow
0.02
Transparent, Translucent
1.653-1.685
-
Orthorhombic
0.020-0.022
Transparent

Compare Gems Found in America

Gems Found in America

Narsarsukite
Narsarsukite
Nano Polycrystalline Diamond
Nano Polycrystalline Diamond
Labradorite
Labradorite
Sillimanite
Villiaumite
Sillimanite Vs Villiaumite
Sillimanite
Soapstone
Sillimanite Vs Soapstone
Sillimanite
Rossmanite
Sillimanite Vs Rossmanite

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