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Verdite
Verdite

Vivianite
Vivianite



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Verdite
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Vivianite

Verdite and Vivianite Optical Properties

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1 Optical Properties
1.1 Luster
Vitreous, Silky
Vitreous, Pearly
1.2 Pleochroism
Extreme
Anomalous plechroism is strong with colours deep blue/pale yellowish green/yellowish green.Michael O’Donoghue
1.3 Dispersion
NANA
Fluorite Optical Properties
0.007 1
1.4 Transparency
Translucent
Transparent
1.5 Refractive Index
1.5801.560-1.640
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
Monoclinic Prismatic H-M Symbol (2/m) Space Group: C 2/c
Not Available
1.8 Birefringence
Not Available0.054-0.075
Achroite
0 0.296
1.9 Clarity
Translucent
Transparent

Verdite and Vivianite Optic Character

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

Verdite and Vivianite Transparency

Similar to their colors, Verdite and Vivianite 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, Verdite is Translucent while Verdite is Translucent in appearance.