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Chrome Tourmaline
Chrome Tourmaline

Opal
Opal



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Chrome Tourmaline
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Opal

Chrome Tourmaline and Opal Optical Properties

Optical Properties

Luster

Pleochroism

Dispersion

Transparency

Refractive Index

Optic Character

Crystal System

Birefringence

Clarity

 
Vitreous
-
0.02
Transparent, Translucent
1.614-1.666
-
Hexagonal
0.014-0.040
Transparent
 
Vitreous, Pearly
None
0.01
Transparent, Translucent, Transparent to translucent
1.37-1.52
-
Trigonal
-9999
Transparent

Chrome Tourmaline and Opal Optic Character

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

Chrome Tourmaline and Opal Transparency

Similar to their colors, Chrome Tourmaline and 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, Chrome Tourmaline is Transparent and Translucent while Chrome Tourmaline is Transparent and Translucent in appearance.