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Tortoiseshell
Tortoiseshell

Anglesite
Anglesite



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Tortoiseshell
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Anglesite
Optical Properties

Luster

Pleochroism

Dispersion

Transparency

Refractive Index

Optic Character

Crystal System

Birefringence

Clarity

 
-
-
0.01
-
1.540-1.560
-
-
-9999
OpaqueUlrich Henn and Claudio C. Milisenda
 
Adamantine
-
0.04
Transparent
1.877-1.894
-
Orthorhombic
0.017
Transparent