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Gahnite
Gahnite

Verdite
Verdite



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Gahnite
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Verdite

Gahnite and Verdite Optical Properties

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Optical Properties

Luster

Vitreous
Vitreous, Silky

Pleochroism

-
Extreme

Dispersion

0.030.03
0.005 1
👆🏻

Transparency

-
Translucent

Refractive Index

1.790-1.8181.580
1 3.25
👆🏻

Optic Character

-
-

Crystal System

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

Birefringence

-9999-9999
0 0.296
👆🏻

Clarity

TransparentUlrich Henn and Claudio C. Milisenda
Translucent

Gahnite and Verdite Optic Character

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

Gahnite and Verdite Transparency

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