Diopside and Apatite Optical Properties

Diopside

Apatite

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Optical Properties

Luster

Vitreous

Pleochroism

Blue stones – strong

Dispersion

0.020.01

0.005 1

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Transparency

Transparent, Translucent, Transparent . Star Diopside is opaque .

Refractive Index

1.664-1.7301.628-1.651

1 3.25

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Optic Character

Crystal System

monoclinic

Hexagonal

Birefringence

0.024-0.0300.002-0.008

0 0.296

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Clarity

Transparent

TransparentUlrich Henn and Claudio C. Milisenda

Diopside and Apatite Optic Character

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

Similar to their colors, Diopside and Apatite 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.