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Verdite
Verdite

Tortoiseshell
Tortoiseshell



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Verdite
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Tortoiseshell

Verdite and Tortoiseshell Optical Properties

Optical Properties

Luster

Vitreous, Silky
-

Pleochroism

Extreme
-

Dispersion

0.030.01
0.005 1
👆🏻

Transparency

Translucent
-

Refractive Index

1.5801.540-1.560
1 3.25
👆🏻

Optic Character

-
-

Crystal System

Monoclinic Prismatic H-M Symbol (2/m) Space Group: C 2/c
-

Birefringence

-9999-9999
0 0.296
👆🏻

Clarity

Translucent
OpaqueUlrich Henn and Claudio C. Milisenda

Verdite and Tortoiseshell Optic Character

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

Similar to their colors, Verdite and Tortoiseshell 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.