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Fluorapatite
Fluorapatite

Pollucite
Pollucite



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Fluorapatite
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Pollucite

Fluorapatite and Pollucite Optical Properties

Optical Properties

Luster

Vitreous, Resinous
Vitreous, Greasy

Pleochroism

Weak to strong if coloreD
-

Dispersion

0.030.01
0.005 1
👆🏻

Transparency

Transparent
Transparent, Translucent

Refractive Index

1.631-1.6501.517-1.525
1 3.25
👆🏻

Optic Character

-
-

Crystal System

Hexagonal
Isometric

Birefringence

-9999-9999
0 0.296
👆🏻

Clarity

Transparent
Transparent

Fluorapatite and Pollucite Optic Character

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

Fluorapatite and Pollucite Transparency

Similar to their colors, Fluorapatite and Pollucite 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, Fluorapatite is Transparent while Fluorapatite is Transparent in appearance.