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Prasiolite and Hemimorphite Optical Properties


Hemimorphite and Prasiolite Optical Properties


Optical Properties

Luster
Vitreous   
Vitreous, Adamantine, Silky   

Pleochroism
Very weak: light green pale greenWalter Schumann   
AbsentWalter Schumann   

Dispersion
0.01   
27
0.02   
18

Transparency
Transparent, Translucent   
Transparent, Translucent   

Refractive Index
1.544-1.553   
1.614-1.636   

Optic Character
Not Available   
Not Available   

Crystal System
Trigonal   
Orthorhombic   

Birefringence
0.009   
0.022   

Clarity
Transparent   
Transparent   

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Prasiolite and Hemimorphite Optic Character

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

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

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