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Rutile
Rutile

Epidote
Epidote



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Rutile
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Epidote

Rutile and Epidote Optical Properties

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Optical Properties

Luster

Adamantine
Vitreous, Resinous

Pleochroism

Weak to distinct brownish red-green-yellow
Strong

Dispersion

0.330.03
0.005 1
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Transparency

Transparent, Translucent
-

Refractive Index

2.609-2.9031.729-1.768
1 3.25
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Optic Character

-
-

Crystal System

tetragonal
monoclinic

Birefringence

0.2960.019-0.046
0 0.296
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Clarity

Transparent
TransparentUlrich Henn and Claudio C. Milisenda

Rutile and Epidote Optic Character

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

Rutile and Epidote Transparency

Similar to their colors, Rutile and Epidote 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, Rutile is Transparent and Translucent while Rutile is Transparent and Translucent in appearance.