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Carnelian and Hackmanite Optical Properties


Hackmanite and Carnelian Optical Properties


Optical Properties

Luster
Vitreous   
Vitreous   

Pleochroism
AbsentWalter Schumann   
Not Available   

Dispersion
None   
Not Available   

Transparency
Translucent, Transparent to nearly opaque   
Gemmological Tables (2004)   

Refractive Index
1.535-1.539   
1.483-1.487   

Optic Character
Not Available   
Not Available   

Crystal System
Trigonal   
Not Available   

Birefringence
0.003-0.009   
Not Available   

Clarity
Translucent   
Transparent   

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Carnelian and Hackmanite Optic Character

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

Similar to their colors, Carnelian and Hackmanite 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, Carnelian is Translucent and Transparent to nearly opaque while Carnelian is Translucent and Transparent to nearly opaque in appearance.

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