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Rubellite
Rubellite

Taaffeite
Taaffeite



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Taaffeite

Rubellite and Taaffeite Optical Properties

1 Optical Properties
1.1 Luster
Not Available
Vitreous
1.2 Pleochroism
Strong: dark red pinkish-redHerve Nicolas Lazzarelli
Weak
1.3 Dispersion
Albite Optical ..
0.02
Rank: 22 (Overall)
0.02
Rank: 18 (Overall)
Fluorite Optical Properties
1.4 Transparency
Transparent, Translucent
Gemmological Tables (2004) More from other references
1.5 Refractive Index
1.614-1.666
1.70-1.73
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
Not Available
Hexagonal
1.8 Birefringence
0.014-0.040
0.055
1.9 Clarity
Transparent
Color grading system

Rubellite and Taaffeite Optic Character

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

Similar to their colors, Rubellite and Taaffeite 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.