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Prasiolite
Prasiolite

Kyanite
Kyanite



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Prasiolite
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Kyanite

Prasiolite and Kyanite Optical Properties

1 Optical Properties
1.1 Luster
Vitreous
Vitreous, Pearly
1.2 Pleochroism
Very weak: light green pale greenWalter Schumann
Trichroic
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
1.71-1.74
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
Trigonal
Triclinic
1.8 Birefringence
0.009
Not Available
1.9 Clarity
Transparent
Color grading system

Prasiolite and Kyanite Optic Character

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

Similar to their colors, Prasiolite and Kyanite 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.

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