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Blue John
Blue John
☒

Chrome-Chalcedony
Chrome-Chalcedony
☒



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Blue John
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Chrome-Chalcedony
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Optical Properties

Luster

Pleochroism

Dispersion

Transparency

Refractive Index

Optic Character

Crystal System

Birefringence

Clarity

 
-
-
0.02
Transparent
1.432-1.436
-
-
-9999
Transparent
 
Waxy
-
0.01
Translucent
1.530-1.543
-
-
0.003-0.009
Translucent

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