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Tantalite
Tantalite
☒

Hackmanite
Hackmanite
☒



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Tantalite
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Hackmanite
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Optical Properties

Luster

Pleochroism

Dispersion

Transparency

Refractive Index

Optic Character

Crystal System

Birefringence

Clarity

 
Resinous
-
0.03
TransparentWalter Schumann
2.190-2.457
-
Orthorhombic
0.083
TransparentWalter Schumann
 
Vitreous
-
0.03
-
1.483-1.487
-
-
-9999
Transparent

Compare Brown Gemstones

Brown Gemstones

Pyrrhotite
Pyrrhotite
Vesuvianite
Vesuvianite
Vlasovite
Vlasovite
Hackmanite
Petrified Wood
Hackmanite Vs Petrified Wood
Hackmanite
Chromite
Hackmanite Vs Chromite
Hackmanite
Radiolarite
Hackmanite Vs Radiolarite

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