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Phlogopite
Phlogopite

Californite
Californite



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Phlogopite
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Californite

Phlogopite and Californite Optical Properties

Optical Properties

Luster

Pearly
Vitreous

Pleochroism

-
Weak; present colour lighter and darker

Dispersion

0.040.01
0.005 1
👆🏻

Transparency

-
TranslucentWalter Schumann

Refractive Index

1.530-1.5731.700-1.725
1 3.25
👆🏻

Optic Character

-
-

Crystal System

monoclinic
-

Birefringence

0.0280-0.04500.001-0.012
0 0.296
👆🏻

Clarity

-
TranslucentWalter Schumann

Phlogopite and Californite Optic Character

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

Similar to their colors, Phlogopite and Californite 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.