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Prasiolite and Clinochlore Optical Properties


Clinochlore and Prasiolite Optical Properties


Optical Properties

Luster
Vitreous   
Pearly, Greasy   

Pleochroism
Very weak: light green pale greenWalter Schumann   
Distinct: light yellow-green to light bluE   

Dispersion
0.01   
27
Not Available   

Transparency
Transparent, Translucent   
Transparent   

Refractive Index
1.544-1.553   
1.571-1.597   

Optic Character
Not Available   
Biaxial/+   

Crystal System
Trigonal   
Monoclinic Prismatic H-M Symbol (2/m) Space Group: C 2/m   

Birefringence
0.009   
Not Available   

Clarity
Transparent   
Transparent   

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Prasiolite and Clinochlore Optic Character

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

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Prasiolite and Clinochlore Transparency

Similar to their colors, Prasiolite and Clinochlore 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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