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Gahnite
Gahnite

Gedrite
Gedrite



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Gahnite
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Gedrite

Gahnite and Gedrite Optical Properties

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Optical Properties

Luster

Vitreous
Vitreous

Pleochroism

-
Weak to moderate

Dispersion

0.030.02
0.005 1
👆🏻

Transparency

-
Transparent

Refractive Index

1.790-1.8181.625-1.718
1 3.25
👆🏻

Optic Character

-
-

Crystal System

cubic
Orthorhombic Dipyramidal H-M Symbol (2/m 2/m 2/m) Space Group: P nma

Birefringence

-9999-9999
0 0.296
👆🏻

Clarity

TransparentUlrich Henn and Claudio C. Milisenda
Transparent

Gahnite and Gedrite Optic Character

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

Similar to their colors, Gahnite and Gedrite 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.