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Cobaltite

Grossular and Cobaltite Optical Properties

1 Optical Properties
1.1 Luster
Greasy, Vitreous
Not Available
1.2 Pleochroism
None
Very weak
1.3 Dispersion
Albite Optical ..
0.02
Rank: 18 (Overall)
Not Available
Rank: N/A (Overall)
Fluorite Optical Properties
1.4 Transparency
Gemmological Tables (2004) More from other references
Gems
1.5 Refractive Index
1.730-1.760
Not Available
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
cubic
Orthorhombic Pyramidal H-M Symbol (mm2) Space Group: P ca21
1.8 Birefringence
0.020
Not Available
1.9 Clarity
TransparentUlrich Henn and Claudio C. Milisenda
Gems

Grossular and Cobaltite Optic Character

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

Grossular and Cobaltite Transparency

Similar to their colors, Grossular 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, Grossular is Gemmological Tables (2004) More from other references while Grossular is Gemmological Tables (2004) More from other references in appearance.