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Carnelian
Carnelian

Cuprite
Cuprite



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Carnelian
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Cuprite

Carnelian and Cuprite Optical Properties

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1 Optical Properties
1.1 Luster
Vitreous
Adamantine
1.2 Pleochroism
AbsentWalter Schumann
visible
1.3 Dispersion
Albite Optical ..
None
Rank: N/A (Overall)
Not Available
Rank: N/A (Overall)
Fluorite Optical Properties
1.4 Transparency
Translucent, Transparent to nearly opaque
TranslucentWalter Schumann
1.5 Refractive Index
1.535-1.539
2.849
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
Trigonal
cubic
1.8 Birefringence
0.003-0.009
Not Available
1.9 Clarity
Translucent
TranslucentWalter Schumann

Carnelian and Cuprite Optic Character

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

Similar to their colors, Carnelian and Cuprite 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.