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Rubellite
Rubellite

Jet
Jet



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Rubellite
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Jet

Rubellite and Jet Optical Properties

Jet
Jet
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1 Optical Properties
1.1 Luster
Not Available
Waxy
1.2 Pleochroism
Strong: dark red pinkish-redHerve Nicolas Lazzarelli
AbsentWalter Schumann
1.3 Dispersion
0.02None
Fluorite Optical Properties
0.007 1
1.4 Transparency
Transparent, Translucent
Gemmological Tables (2004) More from other references
1.5 Refractive Index
1.614-1.6661.640-1.680
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
Not Available
Amorphous
1.8 Birefringence
0.014-0.040Not Available
Achroite
0 0.296
1.9 Clarity
Transparent
Gemmological Tables (2004) More from other references

Rubellite and Jet Optic Character

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

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