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Prase
Prase

Tanzanite
Tanzanite



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Prase
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Tanzanite

Prase and Tanzanite Optical Properties

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Optical Properties

Luster

-
Vitreous

Pleochroism

-
Present

Dispersion

0.010.03
0.005 1
👆🏻

Transparency

Transparent, Translucent
Transparent, Translucent, Transparent to translucent

Refractive Index

1.544-1.5531.685-1.707
1 3.25
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Optic Character

-
-

Crystal System

-
Orthorhombic

Birefringence

0.0090.006-0.018
0 0.296
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Clarity

Transparent
TransparentUlrich Henn and Claudio C. Milisenda

Prase and Tanzanite Optic Character

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

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