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Garnet
Garnet

Cobaltite
Cobaltite



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Garnet
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Cobaltite

Garnet and Cobaltite Optical Properties

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1 Optical Properties
1.1 Luster
Vitreous, Adamantine, Vitreous, Adamantine
Not Available
1.2 Pleochroism
None
Very weak
1.3 Dispersion
0.02NA
Fluorite Optical Properties
0.007 1
1.4 Transparency
Transparent, Transparent to translucent
Gems
1.5 Refractive Index
1.730-1.895Not Available
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
Trigonal
Orthorhombic Pyramidal H-M Symbol (mm2) Space Group: P ca21
1.8 Birefringence
Not AvailableNot Available
Achroite
0 0.296
1.9 Clarity
Transparent
Gems

Garnet and Cobaltite Optic Character

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

Garnet and Cobaltite Transparency

Similar to their colors, Garnet 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, Garnet is Transparent and Transparent to translucent while Garnet is Transparent and Transparent to translucent in appearance.