×

Lazulite
Lazulite

Taaffeite
Taaffeite



ADD
Compare
X
Lazulite
X
Taaffeite

Lazulite and Taaffeite Optical Properties

1 Optical Properties
1.1 Luster
Not Available
Vitreous
1.2 Pleochroism
Transparent crystals show a strong pleochroism: colorless light blue dark (violet) blueHerve Nicolas Lazzarelli
Weak
1.3 Dispersion
0.010.02
Fluorite Optical Properties
0.007 1
1.4 Transparency
Transparent, Translucent
Gemmological Tables (2004) More from other references
1.5 Refractive Index
1.604-1.6461.70-1.73
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
monoclinic
Hexagonal
1.8 Birefringence
0.031-0.0360.055
Achroite
0 0.296
1.9 Clarity
Transparent
Color grading system

Lazulite and Taaffeite Optic Character

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

Lazulite and Taaffeite Transparency

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