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Axinite
Axinite

Fluorapatite
Fluorapatite



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Axinite
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Fluorapatite

Axinite and Fluorapatite Optical Properties

Optical Properties

Luster

Vitreous
Vitreous, Resinous

Pleochroism

Strong
Weak to strong if coloreD

Dispersion

0.020.03
0.005 1
👆🏻

Transparency

-
Transparent

Refractive Index

1.656-1.7041.631-1.650
1 3.25
👆🏻

Optic Character

Biaxial/+
-

Crystal System

Triclinic
Hexagonal

Birefringence

0.009-0.012-9999
0 0.296
👆🏻

Clarity

TransparentUlrich Henn and Claudio C. Milisenda
Transparent

Axinite and Fluorapatite Optic Character

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

Axinite and Fluorapatite Transparency

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