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Rhodolite and Hibonite Optical Properties


Hibonite and Rhodolite Optical Properties


Optical Properties

Luster
Greasy, Vitreous   
Vitreous   

Pleochroism
None   
O = brownish gray; E = gray   

Dispersion
None   
Not Available   

Transparency
Gemmological Tables (2004)   
Handbook of mineralogy (2001)   

Refractive Index
1.760   
1.79-1.807   

Optic Character
Not Available   
Not Available   

Crystal System
cubic   
Hexagonal   

Birefringence
0.010-0.014   
Not Available   

Clarity
TransparentUlrich Henn and Claudio C. Milisenda   
Handbook of mineralogy (2001)   

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Rhodolite and Hibonite Optic Character

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

Similar to their colors, Rhodolite 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, Rhodolite is Gemmological Tables (2004) while Rhodolite is Gemmological Tables (2004) in appearance.

Red Gemstones

Red Gemstones


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