Shattuckite and Kyanite Cyprine Optical Properties

Shattuckite

Kyanite Cyprine

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1 Optical Properties

1.1 Luster

Silky

Vitreous

1.2 Pleochroism

X = very pale blue; Y = pale blue; Z = deep blue

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

1.3 Dispersion

NA0.02

0.007 1

1.4 Transparency

Translucent

Transparent

1.5 Refractive Index

1.752-1.8151.710-1.735

1 3.25

1.6 Optic Character

Not Available

Biaxial/+

1.7 Crystal System

Orthorhombic

Not Available

1.8 Birefringence

0.0630.012-0.033

0 0.296

1.9 Clarity

Translucent

Transparent

Shattuckite and Kyanite Cyprine Optic Character

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

Similar to their colors, Shattuckite 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, Shattuckite is Translucent while Shattuckite is Translucent in appearance.