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Phlogopite
Phlogopite

Azurmalachite
Azurmalachite



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Phlogopite
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Azurmalachite

Phlogopite and Azurmalachite Optical Properties

Optical Properties

Luster

Pearly
Vitreous, Silky

Pleochroism

-
-

Dispersion

0.040.07
0.005 1
👆🏻

Transparency

-
Translucent

Refractive Index

1.530-1.5731.655-1.909
1 3.25
👆🏻

Optic Character

-
Biaxial/+

Crystal System

monoclinic
monoclinic

Birefringence

0.0280-0.04500.108-0.254
0 0.296
👆🏻

Clarity

-
Translucent

Phlogopite and Azurmalachite Optic Character

Phlogopite and Azurmalachite optical properties play a significant role while distinguishing these gemstones from each other. These properties are influenced by the Phlogopite and Azurmalachite 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 Azurmalachite 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. Azurmalachite has Biaxial/+ character.

Phlogopite and Azurmalachite Transparency

Similar to their colors, Phlogopite and Azurmalachite 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.