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Hibonite
Hibonite

Citrine
Citrine



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Hibonite
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Citrine
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Optical Properties

Luster

Pleochroism

Dispersion

Transparency

Refractive Index

Optic Character

Crystal System

Birefringence

Clarity

 
Vitreous
O = brownish gray; E = gray
0.02
-
1.79-1.807
-
Hexagonal
-9999
-
 
Vitreous
Natural: weak; yellow light yellow.
0.01
Transparent
1.544-1.553
-
Trigonal
0.009
Transparent