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Prasiolite
Prasiolite

Andradite
Andradite



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Prasiolite
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Andradite

Prasiolite and Andradite Optical Properties

1 Optical Properties
1.1 Luster
Vitreous
Adamantine, Resinous
1.2 Pleochroism
Very weak: light green pale greenWalter Schumann
Not Available
1.3 Dispersion
0.010.06
Fluorite Optical Properties
0.007 1
1.4 Transparency
Transparent, Translucent
Transparent
1.5 Refractive Index
1.544-1.5531.88-1.94
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
Trigonal
cubic
1.8 Birefringence
0.0090.057
Achroite
0 0.296
1.9 Clarity
Transparent
Transparent

Prasiolite and Andradite Optic Character

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

Similar to their colors, Prasiolite and Andradite 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.