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Verdelite
Verdelite

Apatite
Apatite



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Verdelite
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Apatite

Verdelite and Apatite Optical Properties

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Optical Properties

Luster

-
Vitreous

Pleochroism

Strong: dark green yellow
Blue stones – strong

Dispersion

0.020.01
0.005 1
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Transparency

Transparent, Translucent
-

Refractive Index

1.614-1.6661.628-1.651
1 3.25
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Optic Character

-
-

Crystal System

-
Hexagonal

Birefringence

0.014-0.0400.002-0.008
0 0.296
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Clarity

Transparent
TransparentUlrich Henn and Claudio C. Milisenda

Verdelite and Apatite Optic Character

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

Verdelite and Apatite Transparency

Similar to their colors, Verdelite 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, Verdelite is Transparent and Translucent while Verdelite is Transparent and Translucent in appearance.