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Black Opal
Black Opal

Pyrope Garnet
Pyrope Garnet



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Black Opal
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Pyrope Garnet

Black Opal and Pyrope Garnet Optical Properties

Optical Properties

Luster

-
Vitreous

Pleochroism

-
-

Dispersion

0.010.03
0.005 1
👆🏻

Transparency

Transparent, Translucent
Transparent, Translucent, Transparent to translucent

Refractive Index

1.370-1.4701.720-1.760
1 3.25
👆🏻

Optic Character

-
-

Crystal System

-
Isometric

Birefringence

-9999-9999
0 0.296
👆🏻

Clarity

Transparent
Transparent to translucent

Black Opal and Pyrope Garnet Optic Character

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

Black Opal and Pyrope Garnet Transparency

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