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Rubellite
Rubellite

Radiolarite
Radiolarite



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Rubellite
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Radiolarite

Rubellite and Radiolarite Optical Properties

Optical Properties

Luster

-
-

Pleochroism

Strong: dark red pinkish-redHerve Nicolas Lazzarelli
-

Dispersion

0.020.01
0.005 1
👆🏻

Transparency

Transparent, Translucent
-

Refractive Index

1.614-1.666-9999
1 3.25
👆🏻

Optic Character

-
-

Crystal System

-
-

Birefringence

0.014-0.040-9999
0 0.296
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Clarity

Transparent
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Rubellite and Radiolarite Optic Character

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

Rubellite and Radiolarite Transparency

Similar to their colors, Rubellite and Radiolarite 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, Rubellite is Transparent and Translucent while Rubellite is Transparent and Translucent in appearance.