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Chalcedony
Chalcedony

Vesuvianite
Vesuvianite



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Chalcedony
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Vesuvianite

Chalcedony and Vesuvianite Optical Properties

1 Optical Properties
1.1 Luster
Vitreous
Vitreous, Resinous
1.2 Pleochroism
AbsentWalter Schumann
slight in colored varieties
1.3 Dispersion
NoneNA
Fluorite Optical Properties
0.007 1
1.4 Transparency
Translucent, Translucent to opaque
Not Available
1.5 Refractive Index
1.530-1.5431.703-1.752
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
Trigonal
tetragonal
1.8 Birefringence
0.003-0.0090.004-0.006
Achroite
0 0.296
1.9 Clarity
Translucent
Not Available

Chalcedony and Vesuvianite Optic Character

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

Chalcedony and Vesuvianite Transparency

Similar to their colors, Chalcedony and Vesuvianite 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, Chalcedony is Translucent and Translucent to opaque while Chalcedony is Translucent and Translucent to opaque in appearance.