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Prasiolite
Prasiolite

Chlorastrolite
Chlorastrolite



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Prasiolite
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Chlorastrolite

Prasiolite and Chlorastrolite Optical Properties

Optical Properties

Luster

Pleochroism

Dispersion

Transparency

Refractive Index

Optic Character

Crystal System

Birefringence

Clarity

 
Vitreous
Very weak: light green pale greenWalter Schumann
0.01
Transparent, Translucent
1.544-1.553
-
Trigonal
0.009
Transparent
 
Chatoyant
-
0.01
-
1.7
-
-
0.010
-

Prasiolite and Chlorastrolite Optic Character

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

Prasiolite and Chlorastrolite Transparency

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