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Taaffeite
Taaffeite

Apophyllite
Apophyllite



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Taaffeite
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Apophyllite

Taaffeite and Apophyllite Optical Properties

Optical Properties

Luster

Pleochroism

Dispersion

Transparency

Refractive Index

Optic Character

Crystal System

Birefringence

Clarity

 
Vitreous
Weak
0.02
-
1.70-1.73
-
Hexagonal
0.055
-
 
Vitreous, Pearly
Dichroic (colorless)
0.01
Transparent, Translucent
1.530-1.543
Uniaxial/-
tetragonal
0.000-0.003
Transparent

Taaffeite and Apophyllite Optic Character

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

Similar to their colors, Taaffeite and Apophyllite 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.