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Smithsonite
Smithsonite

Tanzanite
Tanzanite



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Smithsonite and Tanzanite Optical Properties

1 Optical Properties
1.1 Luster
Vitreous, Pearly
Vitreous
1.2 Pleochroism
AbsentWalter Schumann
Present
1.3 Dispersion
Albite Optical ..
0.01
Rank: 26 (Overall)
0.03
Rank: 14 (Overall)
Fluorite Optical Properties
1.4 Transparency
Translucent
Transparent, Translucent, Transparent to translucent
1.5 Refractive Index
1.620-1.850
1.685-1.707
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
Trigonal
Orthorhombic
1.8 Birefringence
0.223-0.227
0.006-0.018
1.9 Clarity
Translucent
TransparentUlrich Henn and Claudio C. Milisenda

Smithsonite and Tanzanite Optic Character

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

Smithsonite and Tanzanite Transparency

Similar to their colors, Smithsonite 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, Smithsonite is Translucent while Smithsonite is Translucent in appearance.

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