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Angelite and Hibonite Optical Properties


Hibonite and Angelite Optical Properties


Optical Properties

Luster
Not Available   
Vitreous   

Pleochroism
Not Available   
O = brownish gray; E = gray   

Dispersion
Not Available   
Not Available   

Transparency
Not Available   
Handbook of mineralogy (2001)   

Refractive Index
Not Available   
1.79-1.807   

Optic Character
Not Available   
Not Available   

Crystal System
Orthorhombic   
Hexagonal   

Birefringence
Not Available   
Not Available   

Clarity
Not Available   
Handbook of mineralogy (2001)   

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Angelite and Hibonite Optic Character

Angelite and Hibonite optical properties play a significant role while distinguishing these gemstones from each other. These properties are influenced by the Angelite and Hibonite 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 Angelite and Hibonite 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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Angelite and Hibonite Transparency

Similar to their colors, Angelite and Hibonite 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, Angelite is Not Available while Angelite is Not Available in appearance.

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