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Xonotlite and Villiaumite Optical Properties


Villiaumite and Xonotlite Optical Properties


Optical Properties

Luster
Vitreous, Silky   
Not Available   

Pleochroism
Not Available   
Yellow to pink/deep carmineMichael O’Donoghue   

Dispersion
Not Available   
Not Available   

Transparency
Gems, Sixth Edition (2006)   
Gemmological Tables (2004) More from other references   

Refractive Index
1.581-1.593   
1.328-1.332   

Optic Character
Not Available   
Not Available   

Crystal System
monoclinic   
Not Available   

Birefringence
0.010   
Not Available   

Clarity
Gems   
TransparentUlrich Henn and Claudio C. Milisenda   

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Xonotlite and Villiaumite Optic Character

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

Similar to their colors, Xonotlite and Villiaumite 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, Xonotlite is Gems and Sixth Edition (2006) while Xonotlite is Gems and Sixth Edition (2006) in appearance.

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