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Tourmaline
Tourmaline

Serpentine
Serpentine



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Tourmaline
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Serpentine

Tourmaline and Serpentine Optical Properties

1 Optical Properties
1.1 Luster
Vitreous
Vitreous, Greasy, Silky
1.2 Pleochroism
typically moderate to strong
AbsentWalter Schumann
1.3 Dispersion
0.02None
Fluorite Optical Properties
0.007 1
1.4 Transparency
Transparent, Translucent, Transparent to opaque
Translucent
1.5 Refractive Index
1.614-1.6661.560-1.571
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
Trigonal
monoclinic
1.8 Birefringence
0.014-0.0400.008-0.014
Achroite
0 0.296
1.9 Clarity
Transparent
Translucent

Tourmaline and Serpentine Optic Character

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

Tourmaline and Serpentine Transparency

Similar to their colors, Tourmaline and Serpentine 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, Tourmaline is Translucent, Transparent and Transparent to opaque while Tourmaline is Translucent, Transparent and Transparent to opaque in appearance.