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Paraiba
Paraiba
☒

Herderite
Herderite
☒



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Paraiba
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Herderite
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Optical Properties

Luster

Pleochroism

Dispersion

Transparency

Refractive Index

Optic Character

Crystal System

Birefringence

Clarity

 
-
-
0.02
-
1.618-1.643
-
-
-9999
-
 
Vitreous
-
0.01
Transparent
1.587-1.642
Biaxial/+
monoclinic
0.028-0.032
Transparent

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