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Cobaltite
Cobaltite

Chrysoberyl
Chrysoberyl



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Cobaltite
X
Chrysoberyl

Cobaltite and Chrysoberyl Optical Properties

1 Optical Properties
1.1 Luster
Not Available
Vitreous
1.2 Pleochroism
Very weak
X = red; Y = yellow-orange; Z = emerald-green
1.3 Dispersion
NA0.02
Fluorite Optical Properties
0.007 1
1.4 Transparency
Gems
Transparent, Translucent, Transparent to translucent
1.5 Refractive Index
Not Available1.746-1.763
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Biaxial/+
1.7 Crystal System
Orthorhombic Pyramidal H-M Symbol (mm2) Space Group: P ca21
Orthorhombic
1.8 Birefringence
Not Available0.007-0.013
Achroite
0 0.296
1.9 Clarity
Gems
Transparent

Cobaltite and Chrysoberyl Optic Character

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

Cobaltite and Chrysoberyl Transparency

Similar to their colors, Cobaltite 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, Cobaltite is Gems while Cobaltite is Gems in appearance.