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Hibonite and Aragonite Optical Properties


Aragonite and Hibonite Optical Properties


Optical Properties

Luster
Vitreous   
Vitreous, Resinous   

Pleochroism
O = brownish gray; E = gray   
StrongArthur Thomas   

Dispersion
Not Available   
Not Available   

Transparency
Handbook of mineralogy (2001)   
Transparent, Translucent   

Refractive Index
1.79-1.807   
1.525-1.686   

Optic Character
Not Available   
Not Available   

Crystal System
Hexagonal   
Orthorhombic   

Birefringence
Not Available   
0.155   

Clarity
Handbook of mineralogy (2001)   
Transparent   

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Hibonite and Aragonite Optic Character

Hibonite and Aragonite optical properties play a significant role while distinguishing these gemstones from each other. These properties are influenced by the Hibonite and Aragonite Physical Properties like crystallographic symmetry, pleochroism,etc. in the crystal. Some of the optical properties are refractive index, luster, optic character, pleochroism etc. Prominent among these is Hibonite and Aragonite optic character. You might have noticed your gemologist rotating the gemstone while testing it. Rotating a gemstone along its optic axis helps in determining its optic character.

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Hibonite and Aragonite Transparency

Similar to their colors, Hibonite and Aragonite transparency can also be used as criteria for their primary identification. Although transparency cannot be the only criteria for gemstone identification, it can efficiently used in gemstone grading. Talking about their transparency, Hibonite is Handbook of mineralogy (2001) while Hibonite is Handbook of mineralogy (2001) in appearance.

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