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Rubellite
Rubellite

Actinolite
Actinolite



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Rubellite
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Actinolite

Rubellite and Actinolite Optical Properties

Optical Properties

Luster

-
Vitreous

Pleochroism

Strong: dark red pinkish-redHerve Nicolas Lazzarelli
moderate

Dispersion

0.020.02
0.005 1
👆🏻

Transparency

Transparent, Translucent
TransparentUlrich Henn and Claudio C. Milisenda

Refractive Index

1.614-1.6661.613-1.628
1 3.25
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Optic Character

-
-

Crystal System

-
monoclinic

Birefringence

0.014-0.0400.0250-0.0270
0 0.296
👆🏻

Clarity

Transparent
TransparentUlrich Henn and Claudio C. Milisenda

Rubellite and Actinolite Optic Character

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

Similar to their colors, Rubellite and Actinolite 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.