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Black Opal
Black Opal

Tsavorite Garnet
Tsavorite Garnet



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Black Opal
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Tsavorite Garnet

Black Opal and Tsavorite Garnet Optical Properties

Optical Properties

Luster

-
Vitreous, Adamantine

Pleochroism

-
-

Dispersion

0.010.02
0.005 1
👆🏻

Transparency

Transparent, Translucent
Transparent

Refractive Index

1.370-1.4701.738-1.745
1 3.25
👆🏻

Optic Character

-
-

Crystal System

-
Isometric

Birefringence

-9999-9999
0 0.296
👆🏻

Clarity

Transparent
Transparent

Black Opal and Tsavorite Garnet Optic Character

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

Similar to their colors, Black Opal and Tsavorite 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.