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Sard
Sard

Carnelian
Carnelian



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Sard
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Carnelian

Sard and Carnelian Optical Properties

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1 Optical Properties
1.1 Luster
Waxy
Vitreous
1.2 Pleochroism
AbsentWalter Schumann
AbsentWalter Schumann
1.3 Dispersion
NoneNone
Fluorite Optical Properties
0.007 1
1.4 Transparency
Translucent
Translucent, Transparent to nearly opaque
1.5 Refractive Index
1.535-1.5391.535-1.539
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
Not Available
Trigonal
1.8 Birefringence
0.008-0.0100.003-0.009
Achroite
0 0.296
1.9 Clarity
Translucent
Translucent

Sard and Carnelian Optic Character

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

Sard and Carnelian Transparency

Similar to their colors, Sard and Carnelian 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, Sard is Translucent while Sard is Translucent in appearance.