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Fluorapatite
Fluorapatite

Chrysoprase
Chrysoprase



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Fluorapatite
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Chrysoprase

Fluorapatite and Chrysoprase Optical Properties

Optical Properties

Luster

Vitreous, Resinous
Vitreous, Waxy

Pleochroism

Weak to strong if coloreD
-

Dispersion

0.030.01
0.005 1
👆🏻

Transparency

Transparent
Translucent, Opaque, Translucent to nearly opaque

Refractive Index

1.631-1.6501.530-1.543
1 3.25
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Optic Character

-
-

Crystal System

Hexagonal
Trigonal

Birefringence

-99990.004
0 0.296
👆🏻

Clarity

Transparent
Translucent

Fluorapatite and Chrysoprase Optic Character

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

Similar to their colors, Fluorapatite and Chrysoprase 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.