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Chalcedony
Chalcedony

Charoite
Charoite



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Chalcedony
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Charoite

Chalcedony and Charoite Optical Properties

1 Optical Properties
1.1 Luster
Vitreous
Pearly, Fibrous, Chatoyant
1.2 Pleochroism
AbsentWalter Schumann
NilArthur Thomas
1.3 Dispersion
NoneNA
Fluorite Optical Properties
0.007 1
1.4 Transparency
Translucent, Translucent to opaque
Translucent
1.5 Refractive Index
1.530-1.5431.545-1.560
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
Trigonal
Triclinic
1.8 Birefringence
0.003-0.0090.009
Achroite
0 0.296
1.9 Clarity
Translucent
Translucent

Chalcedony and Charoite Optic Character

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

Similar to their colors, Chalcedony and Charoite 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.