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Goethite
Goethite
☒

Turquoise
Turquoise
☒



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Goethite
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Turquoise
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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
-
 
Waxy
Weak
0.03
Translucent, Opaque
1.610-1.650
-
Triclinic
0.040
Translucent

Compare Brown Gemstones

Brown Gemstones

Povondraite
Povondraite
Sonolite
Sonolite
Staurolite
Staurolite
Turquoise
Jacobsite
Turquoise Vs Jacobsite
Turquoise
Larvikite
Turquoise Vs Larvikite
Turquoise
Magnetite
Turquoise Vs Magnetite

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