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Chrome Tourmaline
Chrome Tourmaline

Onyx
Onyx



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Chrome Tourmaline
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Onyx

Chrome Tourmaline and Onyx Optical Properties

1 Optical Properties
1.1 Luster
Vitreous
Vitreous
1.2 Pleochroism
Not Available
Not Available
1.3 Dispersion
NANA
Fluorite Optical Properties
0.007 1
1.4 Transparency
Transparent, Translucent
Translucent, Opaque, Translucent to opaque
1.5 Refractive Index
1.614-1.6661.530-1.543
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
Hexagonal
Trigonal
1.8 Birefringence
0.014-0.040Not Available
Achroite
0 0.296
1.9 Clarity
Transparent
OpaqueHerve Nicolas Lazzarelli

Chrome Tourmaline and Onyx Optic Character

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

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