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Phlogopite and Charoite Optical Properties


Charoite and Phlogopite Optical Properties


Optical Properties

Luster
Pearly   
Pearly, Fibrous, Chatoyant   

Pleochroism
Not Available   
NilArthur Thomas   

Dispersion
Not Available   
Not Available   

Transparency
Not Available   
Translucent   

Refractive Index
1.530-1.573   
1.545-1.560   

Optic Character
Not Available   
Not Available   

Crystal System
monoclinic   
Triclinic   

Birefringence
0.0280-0.0450   
0.009   

Clarity
Not Available   
Translucent   

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<< Physical Properties

Phlogopite and Charoite Optic Character

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

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Phlogopite and Charoite Transparency

Similar to their colors, Phlogopite and Charoite 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 Not Available while Phlogopite is Not Available in appearance.

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