Cacoxenite and Dumortierite Optical Properties

Cacoxenite

Dumortierite

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1 Optical Properties

1.1 Luster

Silky

Vitreous

1.2 Pleochroism

visible: O = Pale yellow E = Canary yellow to yellow orange

Strong; X = deep blue or violet; Y = yellow to red-violet or nearly colorless; Z = colorless or very pale blue

1.3 Dispersion

NANone

0.007 1

1.4 Transparency

Not Available

Translucent, Translucent to opaque

1.5 Refractive Index

1.575-1.5851.669-1.723

1 3.25

1.6 Optic Character

Not Available

1.7 Crystal System

Hexagonal

Orthorhombic

1.8 Birefringence

Not Available0.011-0.037

0 0.296

1.9 Clarity

Not Available

Translucent

Cacoxenite and Dumortierite Optic Character

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

Similar to their colors, Cacoxenite and Dumortierite 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, Cacoxenite is Not Available while Cacoxenite is Not Available in appearance.