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Apatite
Apatite

Clintonite
Clintonite



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Apatite
X
Clintonite

Apatite and Clintonite Optical Properties

Optical Properties

Luster

Vitreous
Vitreous, Pearly

Pleochroism

Blue stones – strong
X = colorless

Dispersion

0.010.02
0.005 1
👆🏻

Transparency

-
-

Refractive Index

1.628-1.6511.643-1.648
1 3.25
👆🏻

Optic Character

-
-

Crystal System

Hexagonal
monoclinic

Birefringence

0.002-0.0080.012-0.015
0 0.296
👆🏻

Clarity

TransparentUlrich Henn and Claudio C. Milisenda
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Apatite and Clintonite Optic Character

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

Similar to their colors, Apatite and Clintonite 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.