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Benitoite and Celestine Optical Properties


Celestine and Benitoite Optical Properties


Optical Properties

Luster
Vitreous   
Vitreous, Pearly   

Pleochroism
O = colorless; E = purple   
Weakly trichroiC   

Dispersion
0.04   
11
Not Available   

Transparency
Transparent   
Gems   

Refractive Index
1.757-1.804   
1.619-1.635   

Optic Character
Not Available   
Not Available   

Crystal System
Hexagonal   
Orthorhombic   

Birefringence
0.047   
0.004-0.012   

Clarity
Transparent   
Gems   

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Benitoite and Celestine Optic Character

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

Similar to their colors, Benitoite and Celestine 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, Benitoite is Transparent while Benitoite is Transparent in appearance.

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