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Bertrandite
Bertrandite
☒

Tinzenite
Tinzenite
☒



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Bertrandite
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Tinzenite
Optical Properties

Luster

Pleochroism

Dispersion

Transparency

Refractive Index

Optic Character

Crystal System

Birefringence

Clarity

 
Vitreous
none.
0.01
TransparentAnthony et al
1.583-1.614
-
Orthorhombic Pyramidal H-M Symbol (mm2) Space Group: Ccm21
-9999
TransparentAnthony et al
 
Vitreous
In thick sections
0.03
Transparent
1.690-1.705
-
-
-9999
Transparent