Antigorite and Emerald Optical Properties

Antigorite

Emerald

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Optical Properties

Luster

Waxy, Silky, Resinous, Greasy

Vitreous

Pleochroism

pale greenish yellow

Strong dichroism: yellow green Lazzarelli

Dispersion

0.020.01

0.005 1

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Transparency

Translucent

Transparent, Translucent, Transparent to translucent

Refractive Index

1.530-1.5751.565-1.602

1 3.25

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Optic Character

Crystal System

Monoclinic Domatic H-M Symbol (m) Space Group: Cm

Hexagonal

Birefringence

-99990.0040-0.0070

0 0.296

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Clarity

Translucent

Antigorite and Emerald Optic Character

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

Similar to their colors, Antigorite and Emerald 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, Antigorite is Translucent while Antigorite is Translucent in appearance.