Chrome-Chalcedony and Tourmaline Optical Properties

Chrome-Chalcedony

Tourmaline

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1 Optical Properties

1.1 Luster

Waxy

Vitreous

1.2 Pleochroism

Not Available

typically moderate to strong

1.3 Dispersion

NA0.02

0.007 1

1.4 Transparency

Translucent

Transparent, Translucent, Transparent to opaque

1.5 Refractive Index

1.530-1.5431.614-1.666

1 3.25

1.6 Optic Character

Not Available

1.7 Crystal System

Not Available

Trigonal

1.8 Birefringence

0.003-0.0090.014-0.040

0 0.296

1.9 Clarity

Translucent

Transparent

Chrome-Chalcedony and Tourmaline Optic Character

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

Similar to their colors, Chrome-Chalcedony and Tourmaline 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-Chalcedony is Translucent while Chrome-Chalcedony is Translucent in appearance.