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Goethite
Goethite
☒

Aquamarine
Aquamarine
☒



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Goethite
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Aquamarine
Optical Properties

Luster

Pleochroism

Dispersion

Transparency

Refractive Index

Optic Character

Crystal System

Birefringence

Clarity

 
Adamantine
VisibleArthur Thomas
0.05
-
2.26-2.398
-
Orthorhombic
0.138
-
 
Vitreous
-
0.01
Transparent, Translucent, Transparent to translucent
1.570-1.592
-
Hexagonal
0.005-0.009
Transparent to translucent