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Fire Opal
Fire Opal

Andradite Garnet
Andradite Garnet



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Fire Opal
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Andradite Garnet

Fire Opal and Andradite Garnet Optical Properties

Optical Properties

Luster

-
Adamantine

Pleochroism

-
-

Dispersion

0.010.03
0.005 1
👆🏻

Transparency

Transparent, Translucent
Transparent, Opaque, Transparent to opaque

Refractive Index

1.370-1.4701.888-1.889
1 3.25
👆🏻

Optic Character

-
-

Crystal System

-
Isometric

Birefringence

-9999-9999
0 0.296
👆🏻

Clarity

Transparent
Transparent to opaque

Fire Opal and Andradite Garnet Optic Character

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

Fire Opal and Andradite Garnet Transparency

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