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Apatite
Apatite

Azurmalachite
Azurmalachite



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Apatite
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Azurmalachite

Apatite and Azurmalachite Optical Properties

Optical Properties

Luster

Vitreous
Vitreous, Silky

Pleochroism

Blue stones – strong
-

Dispersion

0.010.07
0.005 1
👆🏻

Transparency

-
Translucent

Refractive Index

1.628-1.6511.655-1.909
1 3.25
👆🏻

Optic Character

-
Biaxial/+

Crystal System

Hexagonal
monoclinic

Birefringence

0.002-0.0080.108-0.254
0 0.296
👆🏻

Clarity

TransparentUlrich Henn and Claudio C. Milisenda
Translucent

Apatite and Azurmalachite Optic Character

Apatite and Azurmalachite optical properties play a significant role while distinguishing these gemstones from each other. These properties are influenced by the Apatite and Azurmalachite 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 Azurmalachite 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. Azurmalachite has Biaxial/+ character.

Apatite and Azurmalachite Transparency

Similar to their colors, Apatite and Azurmalachite 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.