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Demantoid
Demantoid
☒

Umbalite
Umbalite
☒



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Demantoid
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Umbalite
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Optical Properties

Luster

Pleochroism

Dispersion

Transparency

Refractive Index

Optic Character

Crystal System

Birefringence

Clarity

 
Adamantine
None
0.06
-
1.880-1.890
-
cubic
-9999
TransparentUlrich Henn and Claudio C. Milisenda
 
-
-
0.02
TransparentGemdat.org
1.730-1.820
-
-
-9999
TransparentGemdat.org

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Green Gemstones

Fibrolite
Fibrolite
Forsterite
Forsterite
Fuchsite
Fuchsite
Umbalite
Ekanite
Umbalite Vs Ekanite
Umbalite
Elaeolite
Umbalite Vs Elaeolite
Umbalite
Euclase
Umbalite Vs Euclase

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