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Elbaite
Elbaite

Tanzanite
Tanzanite



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Elbaite
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Tanzanite

Elbaite and Tanzanite Optical Properties

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1 Optical Properties
1.1 Luster
Vitreous
Vitreous
1.2 Pleochroism
Pale green
Present
1.3 Dispersion
0.020.03
Fluorite Optical Properties
0.007 1
1.4 Transparency
Transparent
Transparent, Translucent, Transparent to translucent
1.5 Refractive Index
1.614-1.6661.685-1.707
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
Trigonal
Orthorhombic
1.8 Birefringence
0.014-0.0320.006-0.018
Achroite
0 0.296
1.9 Clarity
Transparent
TransparentUlrich Henn and Claudio C. Milisenda

Elbaite and Tanzanite Optic Character

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

Elbaite and Tanzanite Transparency

Similar to their colors, Elbaite and Tanzanite 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, Elbaite is Transparent while Elbaite is Transparent in appearance.