Chrome Tourmaline and Gahnospinel Optical Properties

Chrome Tourmaline

Gahnospinel

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1 Optical Properties

1.1 Luster

Vitreous

1.2 Pleochroism

Not Available

AbsentWalter Schumann

1.3 Dispersion

NANA

0.007 1

1.4 Transparency

Transparent, Translucent

Gemmological Tables (2004)

1.5 Refractive Index

1.614-1.6661.735-1.790

1 3.25

1.6 Optic Character

Not Available

1.7 Crystal System

Hexagonal

Isometric

1.8 Birefringence

0.014-0.040Not Available

0 0.296

1.9 Clarity

Transparent

TransparentUlrich Henn and Claudio C. Milisenda

Chrome Tourmaline and Gahnospinel Optic Character

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

Similar to their colors, Chrome Tourmaline and Gahnospinel 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, Chrome Tourmaline is Translucent and Transparent while Chrome Tourmaline is Translucent and Transparent in appearance.