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Prasiolite
Prasiolite

Mimetite
Mimetite



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Prasiolite
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Mimetite

Prasiolite and Mimetite Optical Properties

Optical Properties

Luster

Vitreous
Resinous, Subadamantine

Pleochroism

Very weak: light green pale greenWalter Schumann
Weak

Dispersion

0.010.04
0.005 1
👆🏻

Transparency

Transparent, Translucent
Translucent

Refractive Index

1.544-1.5532.106-2.263
1 3.25
👆🏻

Optic Character

-
-

Crystal System

Trigonal
Hexagonal

Birefringence

0.0090.019
0 0.296
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Clarity

Transparent
Translucent

Prasiolite and Mimetite Optic Character

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

Similar to their colors, Prasiolite and Mimetite 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.