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Moissanite and Dumortierite Optical Properties


Dumortierite and Moissanite Optical Properties


Optical Properties

Luster
Adamantine   
Vitreous   

Pleochroism
NilArthur Thomas   
Strong; X = deep blue or violet; Y = yellow to red-violet or nearly colorless; Z = colorless or very pale blue   

Dispersion
0.10   
5
None   

Transparency
Gemmological Tables (2004) More from other references   
Translucent, Translucent to opaque   

Refractive Index
2.648-2.691   
1.669-1.723   

Optic Character
Not Available   
Not Available   

Crystal System
6H polytype   
Orthorhombic   

Birefringence
0.043   
0.011-0.037   

Clarity
TransparentUlrich Henn and Claudio C. Milisenda   
Translucent   

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Moissanite and Dumortierite Optic Character

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

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Moissanite and Dumortierite Transparency

Similar to their colors, Moissanite and Dumortierite 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, Moissanite is Gemmological Tables (2004) More from other references while Moissanite is Gemmological Tables (2004) More from other references in appearance.

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