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Caledonite
Caledonite

Taaffeite
Taaffeite



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Caledonite
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Taaffeite

Caledonite and Taaffeite Optical Properties

Optical Properties

Luster

Vitreous
Vitreous

Pleochroism

Weak
Weak

Dispersion

0.050.02
0.005 1
👆🏻

Transparency

Transparent
-

Refractive Index

1.818-1.9091.70-1.73
1 3.25
👆🏻

Optic Character

-
-

Crystal System

Orthorhombic
Hexagonal

Birefringence

0.0910.055
0 0.296
👆🏻

Clarity

Transparent
-

Caledonite and Taaffeite Optic Character

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

Caledonite and Taaffeite Transparency

Similar to their colors, Caledonite 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, Caledonite is Transparent while Caledonite is Transparent in appearance.