Kyanite and Schultenite Optical Properties

Kyanite

Schultenite

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1 Optical Properties

1.1 Luster

Vitreous, Pearly

Vitreous, Adamantine

1.2 Pleochroism

Trichroic

Not Available

1.3 Dispersion

NANA

0.007 1

1.4 Transparency

Not Available

TransparentAnthony et al, Handbook of mineralogy (2001)

1.5 Refractive Index

1.71-1.741.890-1.976

1 3.25

1.6 Optic Character

Not Available

1.7 Crystal System

Triclinic

Not Available

1.8 Birefringence

Not AvailableNot Available

0 0.296

1.9 Clarity

Color grading system

TransparentAnthony et al

Kyanite and Schultenite Optic Character

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

Similar to their colors, Kyanite and Schultenite 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 is Not Available while Kyanite is Not Available in appearance.