Schultenite and Tourmaline Optical Properties

Schultenite

Tourmaline

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1 Optical Properties

1.1 Luster

Vitreous, Adamantine

Vitreous

1.2 Pleochroism

Not Available

typically moderate to strong

1.3 Dispersion

NA0.02

0.007 1

1.4 Transparency

TransparentAnthony et al, Handbook of mineralogy (2001)

Transparent, Translucent, Transparent to opaque

1.5 Refractive Index

1.890-1.9761.614-1.666

1 3.25

1.6 Optic Character

Not Available

1.7 Crystal System

Not Available

Trigonal

1.8 Birefringence

Not Available0.014-0.040

0 0.296

1.9 Clarity

TransparentAnthony et al

Transparent

Schultenite and Tourmaline Optic Character

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

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Schultenite and Tourmaline Transparency

Similar to their colors, Schultenite 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, Schultenite is Handbook of mineralogy (2001) and TransparentAnthony et al while Schultenite is Handbook of mineralogy (2001) and TransparentAnthony et al in appearance.