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Tourmaline
Tourmaline

Moissanite
Moissanite



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Tourmaline
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Moissanite

Tourmaline and Moissanite Optical Properties

1 Optical Properties
1.1 Luster
Vitreous
Adamantine
1.2 Pleochroism
typically moderate to strong
NilArthur Thomas
1.3 Dispersion
0.020.10
Fluorite Optical Properties
0.007 1
1.4 Transparency
Transparent, Translucent, Transparent to opaque
Gemmological Tables (2004) More from other references
1.5 Refractive Index
1.614-1.6662.648-2.691
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
Trigonal
6H polytype
1.8 Birefringence
0.014-0.0400.043
Achroite
0 0.296
1.9 Clarity
Transparent
TransparentUlrich Henn and Claudio C. Milisenda

Tourmaline and Moissanite Optic Character

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

Tourmaline and Moissanite Transparency

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