×

Taaffeite
Taaffeite

Rubellite
Rubellite



ADD
Compare
X
Taaffeite
X
Rubellite

Taaffeite and Rubellite Optical Properties

1 Optical Properties
1.1 Luster
Vitreous
Not Available
1.2 Pleochroism
Weak
Strong: dark red pinkish-redHerve Nicolas Lazzarelli
1.3 Dispersion
0.020.02
Fluorite Optical Properties
0.007 1
1.4 Transparency
Gemmological Tables (2004) More from other references
Transparent, Translucent
1.5 Refractive Index
1.70-1.731.614-1.666
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
Hexagonal
Not Available
1.8 Birefringence
0.0550.014-0.040
Achroite
0 0.296
1.9 Clarity
Color grading system
Transparent

Taaffeite and Rubellite Optic Character

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

Similar to their colors, Taaffeite and Rubellite 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.