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Apatite
Apatite

Verdelite
Verdelite



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Apatite
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Verdelite

Apatite and Verdelite Optical Properties

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Optical Properties

Luster

Vitreous
-

Pleochroism

Blue stones – strong
Strong: dark green yellow

Dispersion

0.010.02
0.005 1
👆🏻

Transparency

-
Transparent, Translucent

Refractive Index

1.628-1.6511.614-1.666
1 3.25
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Optic Character

-
-

Crystal System

Hexagonal
-

Birefringence

0.002-0.0080.014-0.040
0 0.296
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Clarity

TransparentUlrich Henn and Claudio C. Milisenda
Transparent

Apatite and Verdelite Optic Character

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

Apatite and Verdelite Transparency

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