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Xonotlite
Xonotlite

Villiaumite
Villiaumite



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Xonotlite
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Villiaumite

Xonotlite and Villiaumite Optical Properties

1 Optical Properties
1.1 Luster
Vitreous, Silky
Not Available
1.2 Pleochroism
Not Available
Yellow to pink/deep carmineMichael O’Donoghue
1.3 Dispersion
NANA
Fluorite Optical Properties
0.007 1
1.4 Transparency
Gems, Sixth Edition (2006)
Gemmological Tables (2004) More from other references
1.5 Refractive Index
1.581-1.5931.328-1.332
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
monoclinic
Not Available
1.8 Birefringence
0.010Not Available
Achroite
0 0.296
1.9 Clarity
Gems
TransparentUlrich Henn and Claudio C. Milisenda

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.

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.