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Prase Opal
Prase Opal

Prasiolite
Prasiolite



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Prase Opal
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Prasiolite

Prase Opal and Prasiolite Optical Properties

Optical Properties

Luster

-
Vitreous

Pleochroism

-
Very weak: light green pale greenWalter Schumann

Dispersion

0.010.01
0.005 1
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Transparency

Transparent, Translucent
Transparent, Translucent

Refractive Index

1.370-1.4701.544-1.553
1 3.25
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Optic Character

-
-

Crystal System

-
Trigonal

Birefringence

-99990.009
0 0.296
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Clarity

Transparent
Transparent

Prase Opal and Prasiolite Optic Character

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

Similar to their colors, Prase Opal and Prasiolite 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.