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Pezzottaite
Pezzottaite

Fire Opal
Fire Opal



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Pezzottaite
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Fire Opal

Pezzottaite and Fire Opal Optical Properties

Optical Properties

Luster

Vitreous
-

Pleochroism

Moderate dichroic
-

Dispersion

0.020.01
0.005 1
👆🏻

Transparency

Transparent
Transparent, Translucent

Refractive Index

1.598-1.6201.370-1.470
1 3.25
👆🏻

Optic Character

-
-

Crystal System

Hexagonal
-

Birefringence

0.008-0.011-9999
0 0.296
👆🏻

Clarity

Transparent
Transparent

Pezzottaite and Fire Opal Optic Character

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

Pezzottaite and Fire Opal Transparency

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