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Phlogopite
Phlogopite

Serendibite
Serendibite



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Phlogopite
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Serendibite

Phlogopite and Serendibite Optical Properties

Optical Properties

Luster

Pearly
Vitreous

Pleochroism

-
visible

Dispersion

0.040.02
0.005 1
👆🏻

Transparency

-
-

Refractive Index

1.530-1.5731.696-1.702
1 3.25
👆🏻

Optic Character

-
-

Crystal System

monoclinic
Triclinic

Birefringence

0.0280-0.04500.005
0 0.296
👆🏻

Clarity

-
TransparentUlrich Henn and Claudio C. Milisenda

Phlogopite and Serendibite Optic Character

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

Similar to their colors, Phlogopite and Serendibite 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.