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Rutilated topaz
Rutilated topaz

Dravite
Dravite



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Rutilated topaz
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Dravite

Rutilated topaz and Dravite Optical Properties

Optical Properties

Luster

-
Vitreous

Pleochroism

-
Very strong: pale yellow colorless

Dispersion

0.030.02
0.005 1
👆🏻

Transparency

-
Transparent

Refractive Index

-99991.614-1.666
1 3.25
👆🏻

Optic Character

-
-

Crystal System

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Trigonal Ditrigonal Pyramidal H-M Symbol (3m) Space Group: R 3m

Birefringence

-99990.014-0.032
0 0.296
👆🏻

Clarity

-
Transparent

Rutilated topaz and Dravite Optic Character

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

Rutilated topaz and Dravite Transparency

Similar to their colors, Rutilated topaz and Dravite 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, Rutilated topaz is while Rutilated topaz is in appearance.