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Hackmanite
Hackmanite
☒

Radiolarite
Radiolarite
☒



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Hackmanite
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Radiolarite
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Optical Properties

Luster

Pleochroism

Dispersion

Transparency

Refractive Index

Optic Character

Crystal System

Birefringence

Clarity

 
Vitreous
-
0.03
-
1.483-1.487
-
-
-9999
Transparent
 
-
-
0.01
-
-9999
-
-
-9999
-

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