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Xonotlite
Xonotlite

Mellite
Mellite



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Xonotlite
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Mellite

Xonotlite and Mellite Optical Properties

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Optical Properties

Luster

Vitreous, Silky
Vitreous

Pleochroism

-
Weak: yellowish brown yellowAnthony et al

Dispersion

0.030.01
0.005 1
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Transparency

-
-

Refractive Index

1.581-1.5931.509-1.541
1 3.25
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Optic Character

-
-

Crystal System

monoclinic
-

Birefringence

0.0100.030
0 0.296
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Clarity

-
TransparentUlrich Henn and Claudio C. Milisenda

Xonotlite and Mellite Optic Character

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

Similar to their colors, Xonotlite and Mellite 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 while Xonotlite is in appearance.