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Phlogopite
Phlogopite

Monazite
Monazite



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Phlogopite
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Monazite

Phlogopite and Monazite Optical Properties

Optical Properties

Luster

Pearly
-

Pleochroism

-
-

Dispersion

0.040.02
0.005 1
👆🏻

Transparency

-
-

Refractive Index

1.530-1.5731.796-1.841
1 3.25
👆🏻

Optic Character

-
-

Crystal System

monoclinic
-

Birefringence

0.0280-0.04500.045
0 0.296
👆🏻

Clarity

-
TransparentUlrich Henn and Claudio C. Milisenda

Phlogopite and Monazite Optic Character

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

Similar to their colors, Phlogopite and Monazite 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.