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Hackmanite
Hackmanite

Andradite
Andradite



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Hackmanite
X
Andradite
Optical Properties

Luster

Pleochroism

Dispersion

Transparency

Refractive Index

Optic Character

Crystal System

Birefringence

Clarity

 
Vitreous
-
0.03
-
1.483-1.487
-
-
-9999
Transparent
 
Adamantine, Resinous
-
0.06
Transparent
1.88-1.94
-
cubic
0.057
Transparent