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Smithsonite
Smithsonite

Tourmaline
Tourmaline



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Smithsonite
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Tourmaline

Smithsonite and Tourmaline Optical Properties

1 Optical Properties
1.1 Luster
Vitreous, Pearly
Vitreous
1.2 Pleochroism
AbsentWalter Schumann
typically moderate to strong
1.3 Dispersion
0.010.02
Fluorite Optical Properties
0.007 1
1.4 Transparency
Translucent
Transparent, Translucent, Transparent to opaque
1.5 Refractive Index
1.620-1.8501.614-1.666
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
Trigonal
Trigonal
1.8 Birefringence
0.223-0.2270.014-0.040
Achroite
0 0.296
1.9 Clarity
Translucent
Transparent

Smithsonite and Tourmaline Optic Character

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

Similar to their colors, Smithsonite and Tourmaline 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.