Moissanite and Foitite Optical Properties

Moissanite

Foitite

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1 Optical Properties

1.1 Luster

Adamantine

Vitreous

1.2 Pleochroism

NilArthur Thomas

Strong: pale lavender dark blueAnthony et al

1.3 Dispersion

0.10NA

0.007 1

1.4 Transparency

Gemmological Tables (2004) More from other references

TranslucentAnthony et al, Translucent

1.5 Refractive Index

2.648-2.691Not Available

1 3.25

1.6 Optic Character

Not Available

1.7 Crystal System

6H polytype

Trigonal Ditrigonal Pyramidal H-M Symbol (3m) Space Group: R 3m

1.8 Birefringence

0.043Not Available

0 0.296

1.9 Clarity

TransparentUlrich Henn and Claudio C. Milisenda

TranslucentAnthony et al

Moissanite and Foitite Optic Character

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

Similar to their colors, Moissanite and Foitite 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.