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Biotite
Biotite
☒

Bustamite
Bustamite
☒



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Biotite
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Bustamite
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Optical Properties

Luster

Pleochroism

Dispersion

Transparency

Refractive Index

Optic Character

Crystal System

Birefringence

Clarity

 
Vitreous, Pearly
Strong
-
-
1.565-1.625
-
monoclinic
0.03-0.07
-
 
Vitreous
Weak
0.02
Transparent, Translucent
1.662-1.707
-
Triclinic
0.013-0.015
Transparent

Compare Yellow Gemstones

Yellow Gemstones

Druzy
Druzy
Golden Beryl
Golden Beryl
Sphene
Sphene
Bustamite
Gaylussite
Bustamite Vs Gaylussite
Bustamite
Shigaite
Bustamite Vs Shigaite
Bustamite
Tinaksite
Bustamite Vs Tinaksite

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