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Apatite
Apatite

Goshenite
Goshenite



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Apatite
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Goshenite

Apatite and Goshenite 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
-
0.01
Transparent
1.562-1.615
-
Hexagonal
0.003-0.010
Transparent

Apatite and Goshenite Optic Character

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

Similar to their colors, Apatite and Goshenite 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.