Indicolite Blue Tourmaline and Inderite Optical Properties

Indicolite Blue Tourmaline

Inderite

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1 Optical Properties

1.1 Luster

Not Available

Vitreous, Pearly, Greasy

1.2 Pleochroism

Strong: dark blue light blueWalter Schumann

Not Available

1.3 Dispersion

0.02NA

0.007 1

1.4 Transparency

Transparent, Translucent

Gemmological Tables (2004)

1.5 Refractive Index

1.614-1.6661.488-1.505

1 3.25

1.6 Optic Character

Not Available

Biaxial/+

1.7 Crystal System

Not Available

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

1.8 Birefringence

0.014-0.0400.017

0 0.296

1.9 Clarity

Transparent

TransparentUlrich Henn and Claudio C. Milisenda

Indicolite Blue Tourmaline and Inderite Optic Character

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

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Indicolite Blue Tourmaline and Inderite Transparency

Similar to their colors, Indicolite Blue Tourmaline 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, Indicolite Blue Tourmaline is Translucent and Transparent while Indicolite Blue Tourmaline is Translucent and Transparent in appearance.