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Riebeckite
Riebeckite

Inderite
Inderite



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Riebeckite
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Inderite

Riebeckite and Inderite Optical Properties

Optical Properties

Luster

Vitreous, Silky
Vitreous, Pearly, Greasy

Pleochroism

X = blue
-

Dispersion

0.02-
0.005 1
👆🏻

Transparency

-
-

Refractive Index

1.680-1.6981.488-1.505
1 3.25
👆🏻

Optic Character

-
Biaxial/+

Crystal System

monoclinic
Monoclinic Prismatic H-M Symbol (2/m) Space Group: P 21/a

Birefringence

0.005-0.0080.017
0 0.296
👆🏻

Clarity

-
TransparentUlrich Henn and Claudio C. Milisenda

Riebeckite and Inderite Optic Character

Riebeckite and Inderite optical properties play a significant role while distinguishing these gemstones from each other. These properties are influenced by the Riebeckite and Inderite 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 Riebeckite and Inderite 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. Inderite has Biaxial/+ character.

Riebeckite and Inderite Transparency

Similar to their colors, Riebeckite and Inderite 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, Riebeckite is while Riebeckite is in appearance.