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Amblygonite
Amblygonite
☒

Beryl
Beryl
☒



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Amblygonite
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Optical Properties

Luster

Pleochroism

Dispersion

Transparency

Refractive Index

Optic Character

Crystal System

Birefringence

Clarity

 
Vitreous, Pearly
weak to none
0.01
-
1.578-1.646
Biaxial/+
Triclinic
0.020-0.030
TransparentUlrich Henn and Claudio C. Milisenda
 
Vitreous, Resinous
Weak to distinct
0.01
Transparent, Transparent to opaque
1.560-1.604
-
Hexagonal
0.0040-0.0070
Transparent

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