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Sonolite
Sonolite

Dumortierite
Dumortierite



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X
Sonolite
X
Dumortierite

Sonolite and Dumortierite Optical Properties

Optical Properties

Luster

Vitreous
Vitreous

Pleochroism

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

Dispersion

0.010.01
0.005 1
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Transparency

TransparentAnthony et al
Translucent, Translucent to opaque

Refractive Index

1.763-1.7931.669-1.723
1 3.25
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Optic Character

-
-

Crystal System

-
Orthorhombic

Birefringence

-99990.011-0.037
0 0.296
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Clarity

TransparentAnthony et al
Translucent

Sonolite and Dumortierite Optic Character

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

Sonolite and Dumortierite Transparency

Similar to their colors, Sonolite 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, Sonolite is TransparentAnthony et al while Sonolite is TransparentAnthony et al in appearance.