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Austinite
Austinite

Cassiterite
Cassiterite



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Austinite
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Cassiterite
Optical Properties

Luster

Pleochroism

Dispersion

Transparency

Refractive Index

Optic Character

Crystal System

Birefringence

Clarity

 
Subadamantine, Silky
-
0.03
-
1.759
-
Orthorhombic
0.024
-
 
Adamantine, Greasy
Pleochroic haloes have been observed. Dichroic in yellow
0.07
Transparent, Translucent
1.990-2.105
-
tetragonal
0.096-0.098
Transparent