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Carnelian
Carnelian

Prasiolite
Prasiolite



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Carnelian
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Prasiolite

Carnelian and Prasiolite Optical Properties

1 Optical Properties
1.1 Luster
Vitreous
Vitreous
1.2 Pleochroism
AbsentWalter Schumann
Very weak: light green pale greenWalter Schumann
1.3 Dispersion
None0.01
Fluorite Optical Properties
0.007 1
1.4 Transparency
Translucent, Transparent to nearly opaque
Transparent, Translucent
1.5 Refractive Index
1.535-1.5391.544-1.553
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
Trigonal
Trigonal
1.8 Birefringence
0.003-0.0090.009
Achroite
0 0.296
1.9 Clarity
Translucent
Transparent

Carnelian and Prasiolite Optic Character

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

Carnelian and Prasiolite Transparency

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