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Prase Opal
Prase Opal

Adularia
Adularia



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Prase Opal
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Adularia

Prase Opal and Adularia Optical Properties

Optical Properties

Luster

-
-

Pleochroism

-
-

Dispersion

0.010.01
0.005 1
👆🏻

Transparency

Transparent, Translucent
TransparentArthur Thomas

Refractive Index

1.370-1.4701.518-1.536
1 3.25
👆🏻

Optic Character

-
-

Crystal System

-
-

Birefringence

-99990.005-0.008
0 0.296
👆🏻

Clarity

Transparent
TransparentArthur Thomas

Prase Opal and Adularia Optic Character

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

Similar to their colors, Prase Opal and Adularia 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.