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Apophyllite
Apophyllite

Chrysoberyl
Chrysoberyl



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Apophyllite
X
Chrysoberyl

Apophyllite and Chrysoberyl Optical Properties

Optical Properties

Luster

Vitreous, Pearly
Vitreous

Pleochroism

Dichroic (colorless)
X = red; Y = yellow-orange; Z = emerald-green

Dispersion

0.010.02
0.005 1
👆🏻

Transparency

Transparent, Translucent
Transparent, Translucent, Transparent to translucent

Refractive Index

1.530-1.5431.746-1.763
1 3.25
👆🏻

Optic Character

Uniaxial/-
Biaxial/+

Crystal System

tetragonal
Orthorhombic

Birefringence

0.000-0.0030.007-0.013
0 0.296
👆🏻

Clarity

Transparent
Transparent

Apophyllite and Chrysoberyl Optic Character

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

Apophyllite and Chrysoberyl Transparency

Similar to their colors, Apophyllite and Chrysoberyl 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.