Kyanite Cyprine and Transvaal Jade Optical Properties

Kyanite Cyprine

Transvaal Jade

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1 Optical Properties

1.1 Luster

Vitreous

Not Available

1.2 Pleochroism

Blue stones strong trichroism: colorless/pale blue (greenish or violet)-blue dark blueHerve Nicolas Lazzarelli

Not Available

1.3 Dispersion

0.020.03

0.007 1

1.4 Transparency

Transparent

Gemmological Tables (2004)

1.5 Refractive Index

1.710-1.735Not Available

1 3.25

1.6 Optic Character

Biaxial/+

Not Available

1.7 Crystal System

Not Available

1.8 Birefringence

0.012-0.033Not Available

0 0.296

1.9 Clarity

Transparent

TransparentUlrich Henn and Claudio C. Milisenda

Kyanite Cyprine and Transvaal Jade Optic Character

Kyanite Cyprine and Transvaal Jade optical properties play a significant role while distinguishing these gemstones from each other. These properties are influenced by the Kyanite Cyprine and Transvaal Jade 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 Kyanite Cyprine and Transvaal Jade 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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Kyanite Cyprine and Transvaal Jade Transparency

Similar to their colors, Kyanite Cyprine and Transvaal Jade 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, Kyanite Cyprine is Transparent while Kyanite Cyprine is Transparent in appearance.