Chrome Tourmaline and Dioptase Optical Properties

Chrome Tourmaline

Dioptase

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1 Optical Properties

1.1 Luster

Vitreous

1.2 Pleochroism

Not Available

Weak; dark emerald green

1.3 Dispersion

NA0.04

0.007 1

1.4 Transparency

Transparent, Translucent

TranslucentHerve Nicolas Lazzarelli

1.5 Refractive Index

1.614-1.6661.644-1.720

1 3.25

1.6 Optic Character

Not Available

1.7 Crystal System

Hexagonal

Trigonal

1.8 Birefringence

0.014-0.0400.051-0.053

0 0.296

1.9 Clarity

Transparent

TranslucentHerve Nicolas Lazzarelli

Chrome Tourmaline and Dioptase Optic Character

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

Similar to their colors, Chrome Tourmaline and Dioptase 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.