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Chalcedony
Chalcedony

Tanzanite
Tanzanite



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Chalcedony
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Tanzanite

Chalcedony and Tanzanite Optical Properties

1 Optical Properties
1.1 Luster
Vitreous
Vitreous
1.2 Pleochroism
AbsentWalter Schumann
Present
1.3 Dispersion
Albite Optical ..
None
Rank: N/A (Overall)
0.03
Rank: 14 (Overall)
Fluorite Optical Properties
1.4 Transparency
Translucent, Translucent to opaque
Transparent, Translucent, Transparent to translucent
1.5 Refractive Index
1.530-1.543
1.685-1.707
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
Trigonal
Orthorhombic
1.8 Birefringence
0.003-0.009
0.006-0.018
1.9 Clarity
Translucent
TransparentUlrich Henn and Claudio C. Milisenda

Chalcedony and Tanzanite Optic Character

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

Similar to their colors, Chalcedony and Tanzanite 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.

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