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Chrysoberyl
Chrysoberyl

Bustamite
Bustamite



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Chrysoberyl
X
Bustamite

Chrysoberyl and Bustamite Optical Properties

1 Optical Properties
1.1 Luster
Vitreous
Vitreous
1.2 Pleochroism
X = red; Y = yellow-orange; Z = emerald-green
Weak
1.3 Dispersion
0.02NA
Fluorite Optical Properties
0.007 1
1.4 Transparency
Transparent, Translucent, Transparent to translucent
Transparent, Translucent
1.5 Refractive Index
1.746-1.7631.662-1.707
Agate Opal
1 3.25
1.6 Optic Character
Biaxial/+
Not Available
1.7 Crystal System
Orthorhombic
Triclinic
1.8 Birefringence
0.007-0.0130.013-0.015
Achroite
0 0.296
1.9 Clarity
Transparent
Transparent

Chrysoberyl and Bustamite Optic Character

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

Chrysoberyl and Bustamite Transparency

Similar to their colors, Chrysoberyl and Bustamite 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, Chrysoberyl is Translucent, Transparent and Transparent to translucent while Chrysoberyl is Translucent, Transparent and Transparent to translucent in appearance.