Emerald and Xonotlite Optical Properties

Emerald

Xonotlite

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1 Optical Properties

1.1 Luster

Vitreous

Vitreous, Silky

1.2 Pleochroism

Strong dichroism: yellow green Lazzarelli

Not Available

1.3 Dispersion

0.01NA

0.007 1

1.4 Transparency

Transparent, Translucent, Transparent to translucent

Gems, Sixth Edition (2006)

1.5 Refractive Index

1.565-1.6021.581-1.593

1 3.25

1.6 Optic Character

Not Available

1.7 Crystal System

Hexagonal

monoclinic

1.8 Birefringence

0.0040-0.00700.010

0 0.296

1.9 Clarity

Color grading system

Gems

Emerald and Xonotlite Optic Character

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

Similar to their colors, Emerald and Xonotlite 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, Emerald is Translucent, Transparent and Transparent to translucent while Emerald is Translucent, Transparent and Transparent to translucent in appearance.