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Phlogopite
Phlogopite

Romanchite
Romanchite



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Phlogopite
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Romanchite

Phlogopite and Romanchite Optical Properties

Optical Properties

Luster

Pearly
-

Pleochroism

-
-

Dispersion

0.040.03
0.005 1
👆🏻

Transparency

-
-

Refractive Index

1.530-1.573-9999
1 3.25
👆🏻

Optic Character

-
-

Crystal System

monoclinic
-

Birefringence

0.0280-0.0450-9999
0 0.296
👆🏻

Clarity

-
-

Phlogopite and Romanchite Optic Character

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

Similar to their colors, Phlogopite and Romanchite 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.