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Goethite
Goethite
☒

Pearl
Pearl
☒



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Goethite
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Pearl
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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
-
 
Pearly
-
0.03
Translucent, Opaque
1.52-1.66
-
Orthorhombic
0.156
Translucent

Compare Brown Gemstones

Brown Gemstones

Povondraite
Povondraite
Sonolite
Sonolite
Staurolite
Staurolite
Pearl
Jacobsite
Pearl Vs Jacobsite
Pearl
Larvikite
Pearl Vs Larvikite
Pearl
Magnetite
Pearl Vs Magnetite

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