Moissanite and Williamsite Optical Properties

Moissanite

Williamsite

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1 Optical Properties

1.1 Luster

Adamantine

Waxy, Silky, Resinous, Greasy

1.2 Pleochroism

NilArthur Thomas

Not Available

1.3 Dispersion

0.10NA

0.007 1

1.4 Transparency

Gemmological Tables (2004) More from other references

TranslucentHerve Nicolas Lazzarelli, Blue Chart Gem Identification (2010)

1.5 Refractive Index

2.648-2.6911.530-1.575

1 3.25

1.6 Optic Character

Not Available

1.7 Crystal System

6H polytype

Not Available

1.8 Birefringence

0.043Not Available

0 0.296

1.9 Clarity

TransparentUlrich Henn and Claudio C. Milisenda

TranslucentHerve Nicolas Lazzarelli

Moissanite and Williamsite Optic Character

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

Similar to their colors, Moissanite and Williamsite 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.