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Sellaite and Celestine Optical Properties


Celestine and Sellaite Optical Properties


Optical Properties

Luster
Vitreous   
Vitreous, Pearly   

Pleochroism
Not Available   
Weakly trichroiC   

Dispersion
Not Available   
Not Available   

Transparency
Transparent   
Gems   

Refractive Index
1.378-1.390   
1.619-1.635   

Optic Character
Not Available   
Not Available   

Crystal System
tetragonal   
Orthorhombic   

Birefringence
0.012   
0.004-0.012   

Clarity
Transparent   
Gems   

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<< Physical Properties

Sellaite and Celestine Optic Character

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

Similar to their colors, Sellaite 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, Sellaite is Transparent while Sellaite is Transparent in appearance.

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