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Pectolite
Pectolite

Chrysoberyl
Chrysoberyl



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X
Pectolite
X
Chrysoberyl

Pectolite and Chrysoberyl Optical Properties

Optical Properties

Luster

Silky
Vitreous

Pleochroism

-
X = red; Y = yellow-orange; Z = emerald-green

Dispersion

0.010.02
0.005 1
👆🏻

Transparency

Transparent
Transparent, Translucent, Transparent to translucent

Refractive Index

1.595-1.6451.746-1.763
1 3.25
👆🏻

Optic Character

-
Biaxial/+

Crystal System

Triclinic
Orthorhombic

Birefringence

0.028-0.0380.007-0.013
0 0.296
👆🏻

Clarity

Transparent
Transparent

Pectolite and Chrysoberyl Optic Character

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

Pectolite and Chrysoberyl Transparency

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