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Taaffeite
Taaffeite

Riebeckite
Riebeckite



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Taaffeite
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Riebeckite

Taaffeite and Riebeckite Optical Properties

1 Optical Properties
1.1 Luster
Vitreous
Vitreous, Silky
1.2 Pleochroism
Weak
X = blue
1.3 Dispersion
0.02NA
Fluorite Optical Properties
0.007 1
1.4 Transparency
Gemmological Tables (2004) More from other references
Not Available
1.5 Refractive Index
1.70-1.731.680-1.698
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
Hexagonal
monoclinic
1.8 Birefringence
0.0550.005-0.008
Achroite
0 0.296
1.9 Clarity
Color grading system
Not Available

Taaffeite and Riebeckite Optic Character

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

Taaffeite and Riebeckite Transparency

Similar to their colors, Taaffeite and Riebeckite 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, Taaffeite is Gemmological Tables (2004) More from other references while Taaffeite is Gemmological Tables (2004) More from other references in appearance.