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Scheelite and Kyanite Cyprine Optical Properties


Kyanite Cyprine and Scheelite Optical Properties


Optical Properties

Luster
Vitreous, Adamantine   
Vitreous   

Pleochroism
Definite dichoric in yellow (yellow to orange-brown)   
Blue stones strong trichroism: colorless/pale blue (greenish or violet)-blue dark blueHerve Nicolas Lazzarelli   

Dispersion
0.04   
12
0.02   
18

Transparency
Translucent, Transparent   
Transparent   

Refractive Index
1.918-1.936   
1.710-1.735   

Optic Character
Not Available   
Biaxial/+   

Crystal System
tetragonal   
Not Available   

Birefringence
0.016   
0.012-0.033   

Clarity
Translucent   
Transparent   

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<< Physical Properties

Scheelite and Kyanite Cyprine Optic Character

Scheelite and Kyanite Cyprine optical properties play a significant role while distinguishing these gemstones from each other. These properties are influenced by the Scheelite and Kyanite Cyprine 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 Scheelite and Kyanite Cyprine 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. Kyanite Cyprine has Biaxial/+ character.

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Scheelite and Kyanite Cyprine Transparency

Similar to their colors, Scheelite and Kyanite Cyprine 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, Scheelite is Translucent and Transparent while Scheelite is Translucent and Transparent in appearance.

Yellow Gemstones

Yellow Gemstones


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