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Apophyllite
Apophyllite

Taaffeite
Taaffeite



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Apophyllite
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Taaffeite

Apophyllite and Taaffeite Optical Properties

Optical Properties

Luster

Vitreous, Pearly
Vitreous

Pleochroism

Dichroic (colorless)
Weak

Dispersion

0.010.02
0.005 1
👆🏻

Transparency

Transparent, Translucent
-

Refractive Index

1.530-1.5431.70-1.73
1 3.25
👆🏻

Optic Character

Uniaxial/-
-

Crystal System

tetragonal
Hexagonal

Birefringence

0.000-0.0030.055
0 0.296
👆🏻

Clarity

Transparent
-

Apophyllite and Taaffeite Optic Character

Apophyllite and Taaffeite optical properties play a significant role while distinguishing these gemstones from each other. These properties are influenced by the Apophyllite 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 Apophyllite 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. Apophyllite has Uniaxial/- character.

Apophyllite and Taaffeite Transparency

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