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Gypsum
Gypsum

Moissanite
Moissanite



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Gypsum
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Moissanite

Gypsum and Moissanite Optical Properties

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1 Optical Properties
1.1 Luster
Vitreous, Silky, Pearly, Waxy
Adamantine
1.2 Pleochroism
None
NilArthur Thomas
1.3 Dispersion
NA0.10
Fluorite Optical Properties
0.007 1
1.4 Transparency
Transparent, Translucent
Gemmological Tables (2004) More from other references
1.5 Refractive Index
1.521-1.5312.648-2.691
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
monoclinic
6H polytype
1.8 Birefringence
0.0100.043
Achroite
0 0.296
1.9 Clarity
Transparent
TransparentUlrich Henn and Claudio C. Milisenda

Gypsum and Moissanite Optic Character

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

Gypsum and Moissanite Transparency

Similar to their colors, Gypsum 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, Gypsum is Translucent and Transparent while Gypsum is Translucent and Transparent in appearance.