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Phlogopite
Phlogopite

Chlorapatite
Chlorapatite



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Phlogopite
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Chlorapatite

Phlogopite and Chlorapatite Optical Properties

Optical Properties

Luster

Pearly
-

Pleochroism

-
Weak to moderate; in pale colors.

Dispersion

0.040.03
0.005 1
👆🏻

Transparency

-
Transparent

Refractive Index

1.530-1.5731.665-1.667
1 3.25
👆🏻

Optic Character

-
-

Crystal System

monoclinic
-

Birefringence

0.0280-0.0450-9999
0 0.296
👆🏻

Clarity

-
Transparent

Phlogopite and Chlorapatite Optic Character

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

Phlogopite and Chlorapatite Transparency

Similar to their colors, Phlogopite and Chlorapatite 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, Phlogopite is while Phlogopite is in appearance.