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Prasiolite
Prasiolite

Cobaltite
Cobaltite



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Prasiolite
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Cobaltite

Prasiolite and Cobaltite Optical Properties

1 Optical Properties
1.1 Luster
Vitreous
Not Available
1.2 Pleochroism
Very weak: light green pale greenWalter Schumann
Very weak
1.3 Dispersion
0.01NA
Fluorite Optical Properties
0.007 1
1.4 Transparency
Transparent, Translucent
Gems
1.5 Refractive Index
1.544-1.553Not 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
0.009Not Available
Achroite
0 0.296
1.9 Clarity
Transparent
Gems

Prasiolite and Cobaltite Optic Character

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

Prasiolite and Cobaltite Transparency

Similar to their colors, Prasiolite 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, Prasiolite is Translucent and Transparent while Prasiolite is Translucent and Transparent in appearance.