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Alabaster
Alabaster

Kyanite
Kyanite



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Alabaster
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Kyanite

Alabaster and Kyanite Optical Properties

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Optical Properties

Luster

-
Vitreous, Pearly

Pleochroism

-
Trichroic

Dispersion

-0.02
0.005 1
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Transparency

Translucent
-

Refractive Index

1.520-1.5301.71-1.74
1 3.25
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Optic Character

-
-

Crystal System

-
Triclinic

Birefringence

0.010-9999
0 0.296
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Clarity

Translucent
-

Alabaster and Kyanite Optic Character

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

Alabaster and Kyanite Transparency

Similar to their colors, Alabaster and Kyanite 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, Alabaster is Translucent while Alabaster is Translucent in appearance.