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Taaffeite
Taaffeite

Annabergite
Annabergite



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Taaffeite
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Annabergite

Taaffeite and Annabergite Optical Properties

Optical Properties

Luster

Vitreous
Subadamantine, Pearly

Pleochroism

Weak
-

Dispersion

0.020.03
0.005 1
👆🏻

Transparency

-
-

Refractive Index

1.70-1.731.622
1 3.25
👆🏻

Optic Character

-
-

Crystal System

Hexagonal
monoclinic

Birefringence

0.0550.065
0 0.296
👆🏻

Clarity

-
-

Taaffeite and Annabergite Optic Character

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

Similar to their colors, Taaffeite and Annabergite 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 while Taaffeite is in appearance.