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Williamsite
Williamsite

Apatite
Apatite



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Williamsite
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Apatite

Williamsite and Apatite Optical Properties

Optical Properties

Luster

Waxy, Silky, Resinous, Greasy
Vitreous

Pleochroism

-
Blue stones – strong

Dispersion

0.030.01
0.005 1
👆🏻

Transparency

TranslucentHerve Nicolas Lazzarelli
-

Refractive Index

1.530-1.5751.628-1.651
1 3.25
👆🏻

Optic Character

-
-

Crystal System

-
Hexagonal

Birefringence

-99990.002-0.008
0 0.296
👆🏻

Clarity

TranslucentHerve Nicolas Lazzarelli
TransparentUlrich Henn and Claudio C. Milisenda

Williamsite and Apatite Optic Character

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

Williamsite and Apatite Transparency

Similar to their colors, Williamsite and Apatite 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, Williamsite is TranslucentHerve Nicolas Lazzarelli while Williamsite is TranslucentHerve Nicolas Lazzarelli in appearance.