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Prasiolite
Prasiolite

Cavansite
Cavansite



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Prasiolite
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Cavansite

Prasiolite and Cavansite Optical Properties

1 Optical Properties
1.1 Luster
Vitreous
Vitreous, Pearly
1.2 Pleochroism
Very weak: light green pale greenWalter Schumann
Visible: X=Z= colorless Y= blue
1.3 Dispersion
Albite Optical ..
0.01
Rank: 27 (Overall)
Not Available
Rank: N/A (Overall)
Fluorite Optical Properties
3.4 Transparency
Transparent, Translucent
Not Available
3.5 Refractive Index
1.544-1.553
1.542
3.6 Optic Character
Not Available
Not Available
3.7 Crystal System
Trigonal
Orthorhombic
3.8 Birefringence
0.009
0.009
3.9 Clarity
Transparent
Not Available

Prasiolite and Cavansite Optic Character

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

Similar to their colors, Prasiolite and Cavansite 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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