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Tourmaline
Tourmaline

Shattuckite
Shattuckite



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Tourmaline
X
Shattuckite

Tourmaline and Shattuckite Optical Properties

Optical Properties

Luster

Pleochroism

Dispersion

Transparency

Refractive Index

Optic Character

Crystal System

Birefringence

Clarity

 
Vitreous
typically moderate to strong
0.02
Transparent, Translucent, Transparent to opaque
1.614-1.666
-
Trigonal
0.014-0.040
Transparent
 
Silky
X = very pale blue; Y = pale blue; Z = deep blue
0.02
Translucent
1.752-1.815
-
Orthorhombic
0.063
Translucent

Tourmaline and Shattuckite Optic Character

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

Similar to their colors, Tourmaline and Shattuckite 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 while Tourmaline is in appearance.