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Allanite
Allanite
☒

Andalusite
Andalusite
☒



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Allanite
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Andalusite
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Optical Properties

Luster

Pleochroism

Dispersion

Transparency

Refractive Index

Optic Character

Crystal System

Birefringence

Clarity

 
-
-
0.02
-
1
-
-
0.013-0.036
-
 
Vitreous, Greasy
strongly trichroic
0.02
Transparent, Translucent
1.627-1.650
-
Orthorhombic
0.009-0.010
Transparent

Compare Brown Gemstones

Brown Gemstones

Anthophyllite
Anthophyllite
Antigorite
Antigorite
Apatite
Apatite
Andalusite
Amblygonite
Andalusite Vs Amblygonite
Andalusite
Anatase
Andalusite Vs Anatase
Andalusite
Andradite
Andalusite Vs Andradite

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