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Hessonite and Cryolite Optical Properties


Cryolite and Hessonite Optical Properties


Optical Properties

Luster
Not Available   
Vitreous, Greasy, Pearly   

Pleochroism
Not Available   
colorless.   

Dispersion
Not Available   
Not Available   

Transparency
Gemmological Tables (2004)   
Gemmological Tables (2004) More from other references   

Refractive Index
1.742-1.748   
1.338-1.339   

Optic Character
Not Available   
Not Available   

Crystal System
Not Available   
monoclinic   

Birefringence
Not Available   
0.001   

Clarity
TransparentUlrich Henn and Claudio C. Milisenda   
TransparentUlrich Henn and Claudio C. Milisenda   

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<< Physical Properties

Hessonite and Cryolite Optic Character

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

Similar to their colors, Hessonite and Cryolite 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, Hessonite is Gemmological Tables (2004) while Hessonite is Gemmological Tables (2004) in appearance.

Brown Gemstones

Brown Gemstones


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