Tugtupite and Riebeckite Optical Properties

Tugtupite

Riebeckite

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1 Optical Properties

1.1 Luster

Not Available

Vitreous, Silky

1.2 Pleochroism

ModerateArthur Thomas

X = blue

1.3 Dispersion

NANA

0.007 1

1.4 Transparency

OpaqueHerve Nicolas Lazzarelli

Not Available

1.5 Refractive Index

1.494-1.5041.680-1.698

1 3.25

1.6 Optic Character

Not Available

1.7 Crystal System

tetragonal

monoclinic

1.8 Birefringence

0.0080.005-0.008

0 0.296

1.9 Clarity

OpaqueHerve Nicolas Lazzarelli

Not Available

Tugtupite and Riebeckite Optic Character

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

Similar to their colors, Tugtupite and Riebeckite 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, Tugtupite is OpaqueHerve Nicolas Lazzarelli while Tugtupite is OpaqueHerve Nicolas Lazzarelli in appearance.