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Hemimorphite and Phlogopite Optical Properties


Phlogopite and Hemimorphite Optical Properties


Optical Properties

Luster
Vitreous, Adamantine, Silky   
Pearly   

Pleochroism
AbsentWalter Schumann   
Not Available   

Dispersion
0.02   
18
Not Available   

Transparency
Transparent, Translucent   
Not Available   

Refractive Index
1.614-1.636   
1.530-1.573   

Optic Character
Not Available   
Not Available   

Crystal System
Orthorhombic   
monoclinic   

Birefringence
0.022   
0.0280-0.0450   

Clarity
Transparent   
Not Available   

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<< Physical Properties

Hemimorphite and Phlogopite Optic Character

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

Similar to their colors, Hemimorphite and Phlogopite 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, Hemimorphite is Translucent and Transparent while Hemimorphite is Translucent and Transparent in appearance.

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