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Willemite
Willemite
☒

Elbaite
Elbaite
☒



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Willemite
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Elbaite
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Optical Properties

Luster

Pleochroism

Dispersion

Transparency

Refractive Index

Optic Character

Crystal System

Birefringence

Clarity

 
Vitreous, Resinous
-
0.17
Transparent, Translucent
1.687-1.723
-
Trigonal
0.028-0.030
Transparent
 
Vitreous
Pale green
0.02
Transparent
1.614-1.666
-
Trigonal
0.014-0.032
Transparent