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Rutile
Rutile

Antigorite
Antigorite



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Rutile
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Antigorite

Rutile and Antigorite Optical Properties

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Optical Properties

Luster

Adamantine
Waxy, Silky, Resinous, Greasy

Pleochroism

Weak to distinct brownish red-green-yellow
pale greenish yellow

Dispersion

0.330.02
0.005 1
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Transparency

Transparent, Translucent
Translucent

Refractive Index

2.609-2.9031.530-1.575
1 3.25
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Optic Character

-
-

Crystal System

tetragonal
Monoclinic Domatic H-M Symbol (m) Space Group: Cm

Birefringence

0.296-9999
0 0.296
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Clarity

Transparent
Translucent

Rutile and Antigorite Optic Character

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

Similar to their colors, Rutile and Antigorite 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.