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Prase Opal
Prase Opal

Kyanite
Kyanite



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Prase Opal
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Kyanite

Prase Opal and Kyanite Optical Properties

Optical Properties

Luster

-
Vitreous, Pearly

Pleochroism

-
Trichroic

Dispersion

0.010.02
0.005 1
👆🏻

Transparency

Transparent, Translucent
-

Refractive Index

1.370-1.4701.71-1.74
1 3.25
👆🏻

Optic Character

-
-

Crystal System

-
Triclinic

Birefringence

-9999-9999
0 0.296
👆🏻

Clarity

Transparent
-

Prase Opal and Kyanite Optic Character

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

Prase Opal and Kyanite Transparency

Similar to their colors, Prase Opal 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, Prase Opal is Transparent and Translucent while Prase Opal is Transparent and Translucent in appearance.