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Common Opal
Common Opal

Pyrope Garnet
Pyrope Garnet



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Common Opal
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Pyrope Garnet

Common Opal and Pyrope Garnet Optical Properties

Optical Properties

Luster

-
Vitreous

Pleochroism

-
-

Dispersion

0.010.03
0.005 1
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Transparency

Translucent
Transparent, Translucent, Transparent to translucent

Refractive Index

1.37-1.521.720-1.760
1 3.25
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Optic Character

-
-

Crystal System

-
Isometric

Birefringence

-9999-9999
0 0.296
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Clarity

Translucent
Transparent to translucent

Common Opal and Pyrope Garnet Optic Character

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

Common Opal and Pyrope Garnet Transparency

Similar to their colors, Common Opal and Pyrope Garnet 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, Common Opal is Translucent while Common Opal is Translucent in appearance.