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Prasiolite
Prasiolite

Andesine
Andesine



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Prasiolite
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Andesine

Prasiolite and Andesine Optical Properties

1 Optical Properties
1.1 Luster
Vitreous
Vitreous
1.2 Pleochroism
Very weak: light green pale greenWalter Schumann
colorless.
1.3 Dispersion
Albite Optical ..
0.01
Rank: 27 (Overall)
0.70
Rank: 2 (Overall)
Fluorite Optical Properties
1.4 Transparency
Transparent, Translucent
Transparent, Translucent, Transparent to translucent
1.5 Refractive Index
1.544-1.553
1.543-1.564
1.6 Optic Character
Not Available
Biaxial/+
1.7 Crystal System
Trigonal
Triclinic
1.8 Birefringence
0.009
0.007-0.011
1.9 Clarity
Transparent
Transparent

Prasiolite and Andesine Optic Character

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

Prasiolite and Andesine Transparency

Similar to their colors, Prasiolite and Andesine 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.