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Seraphinite
Seraphinite

Herderite
Herderite



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Seraphinite
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Herderite
Optical Properties

Luster

Pleochroism

Dispersion

Transparency

Refractive Index

Optic Character

Crystal System

Birefringence

Clarity

 
Pearly, Greasy
-
0.01
Transparent
1.571-1.597
Biaxial/+
-
-9999
Transparent
 
Vitreous
-
0.01
Transparent
1.587-1.642
Biaxial/+
monoclinic
0.028-0.032
Transparent