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Sardonyx
Sardonyx

Spessartine
Spessartine



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Sardonyx and Spessartine Optical Properties

1 Optical Properties
1.1 Luster
Not Available
Vitreous
1.2 Pleochroism
Not Available
Not Available
1.3 Dispersion
Albite Optical ..
Not Available
Rank: N/A (Overall)
0.03
Rank: 15 (Overall)
Fluorite Optical Properties
1.4 Transparency
Translucent
Gemmological Tables (2004) More from other references
1.5 Refractive Index
1.530-1.543
1.789-1.820
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
Not Available
Isometric
1.8 Birefringence
0.008-0.010
0.027
1.9 Clarity
Translucent
TransparentUlrich Henn and Claudio C. Milisenda

Sardonyx and Spessartine Optic Character

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

Sardonyx and Spessartine Transparency

Similar to their colors, Sardonyx and Spessartine 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, Sardonyx is Translucent while Sardonyx is Translucent in appearance.