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Apatite
Apatite

Ekanite
Ekanite



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Apatite
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Ekanite

Apatite and Ekanite Optical Properties

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Optical Properties

Luster

Pleochroism

Dispersion

Transparency

Refractive Index

Optic Character

Crystal System

Birefringence

Clarity

 
Vitreous
Blue stones – strong
0.01
-
1.628-1.651
-
Hexagonal
0.002-0.008
TransparentUlrich Henn and Claudio C. Milisenda
 
Vitreous
-
0.03
Transparent
1.593-1.596
-
Tetragonal Trapezohedral H-M Symbol (4 2 2) Space Group: I 422
0.001
Transparent

Apatite and Ekanite Optic Character

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

Similar to their colors, Apatite and Ekanite 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.