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Gahnite
Gahnite

Rutile
Rutile



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Gahnite
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Rutile

Gahnite and Rutile Optical Properties

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Optical Properties

Luster

Vitreous
Adamantine

Pleochroism

-
Weak to distinct brownish red-green-yellow

Dispersion

0.030.33
0.005 1
👆🏻

Transparency

-
Transparent, Translucent

Refractive Index

1.790-1.8182.609-2.903
1 3.25
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Optic Character

-
-

Crystal System

cubic
tetragonal

Birefringence

-99990.296
0 0.296
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Clarity

TransparentUlrich Henn and Claudio C. Milisenda
Transparent

Gahnite and Rutile Optic Character

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

Similar to their colors, Gahnite and Rutile 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.