×

Chrysoberyl
Chrysoberyl

Cobaltite
Cobaltite



ADD
Compare
X
Chrysoberyl
X
Cobaltite

Chrysoberyl and Cobaltite Optical Properties

1 Optical Properties
1.1 Luster
Vitreous
Not Available
1.2 Pleochroism
X = red; Y = yellow-orange; Z = emerald-green
Very weak
1.3 Dispersion
0.02NA
Fluorite Optical Properties
0.007 1
1.4 Transparency
Transparent, Translucent, Transparent to translucent
Gems
1.5 Refractive Index
1.746-1.763Not Available
Agate Opal
1 3.25
1.6 Optic Character
Biaxial/+
Not Available
1.7 Crystal System
Orthorhombic
Orthorhombic Pyramidal H-M Symbol (mm2) Space Group: P ca21
1.8 Birefringence
0.007-0.013Not Available
Achroite
0 0.296
1.9 Clarity
Transparent
Gems

Chrysoberyl and Cobaltite Optic Character

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

Similar to their colors, Chrysoberyl and Cobaltite 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.