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Prasiolite
Prasiolite

Zinnwaldite
Zinnwaldite



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Prasiolite
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Zinnwaldite

Prasiolite and Zinnwaldite Optical Properties

1 Optical Properties
1.1 Luster
Vitreous
Pearly, Vitreous
1.2 Pleochroism
Very weak: light green pale greenWalter Schumann
Distinct
1.3 Dispersion
Albite Optical ..
0.01
Rank: 27 (Overall)
Not Available
Rank: N/A (Overall)
Fluorite Optical Properties
1.4 Transparency
Transparent, Translucent
Not Available
1.5 Refractive Index
1.544-1.553
1.565-1.625
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
Trigonal
monoclinic
1.8 Birefringence
0.009
0.040-0.050
1.9 Clarity
Transparent
Not Available

Prasiolite and Zinnwaldite Optic Character

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

Similar to their colors, Prasiolite and Zinnwaldite 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.