Diopside and Antigorite Optical Properties

Diopside

Antigorite

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Optical Properties

Luster

Vitreous

Waxy, Silky, Resinous, Greasy

Pleochroism

pale greenish yellow

Dispersion

0.020.02

0.005 1

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Transparency

Transparent, Translucent, Transparent . Star Diopside is opaque .

Translucent

Refractive Index

1.664-1.7301.530-1.575

1 3.25

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Optic Character

Crystal System

monoclinic

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

Birefringence

0.024-0.030-9999

0 0.296

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Clarity

Transparent

Translucent

Diopside and Antigorite Optic Character

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

Similar to their colors, Diopside and Antigorite 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, Diopside is Transparent, Translucent and Transparent . Star Diopside is opaque . while Diopside is Transparent, Translucent and Transparent . Star Diopside is opaque . in appearance.