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Apatite
Apatite

Druzy
Druzy



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Apatite
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Druzy

Apatite and Druzy Optical Properties

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Optical Properties

Luster

Vitreous
-

Pleochroism

Blue stones – strong
-

Dispersion

0.010.01
0.005 1
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Transparency

-
Opaque

Refractive Index

1.628-1.651-9999
1 3.25
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Optic Character

-
-

Crystal System

Hexagonal
Isometric

Birefringence

0.002-0.008-9999
0 0.296
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Clarity

TransparentUlrich Henn and Claudio C. Milisenda
Opaque

Apatite and Druzy Optic Character

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

Similar to their colors, Apatite and Druzy 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.