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Chrome Tourmaline
Chrome Tourmaline

Umbalite
Umbalite



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Chrome Tourmaline
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Umbalite

Chrome Tourmaline and Umbalite Optical Properties

1 Optical Properties
1.1 Luster
Vitreous
Not Available
1.2 Pleochroism
Not Available
Not Available
1.3 Dispersion
NA0.02
Fluorite Optical Properties
0.007 1
1.4 Transparency
Transparent, Translucent
TransparentGemdat.org, Management Team (2012)
1.5 Refractive Index
1.614-1.6661.730-1.820
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
Hexagonal
Not Available
1.8 Birefringence
0.014-0.040Not Available
Achroite
0 0.296
1.9 Clarity
Transparent
TransparentGemdat.org

Chrome Tourmaline and Umbalite Optic Character

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

Similar to their colors, Chrome Tourmaline and Umbalite 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.