Riesling Beryl and Dumortierite Optical Properties

Riesling Beryl

Dumortierite

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1 Optical Properties

1.1 Luster

Not Available

Vitreous

1.2 Pleochroism

Strongly dichroicMartin H. Read

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

1.3 Dispersion

0.01None

0.007 1

1.4 Transparency

Not Available

Translucent, Translucent to opaque

1.5 Refractive Index

1.591.669-1.723

1 3.25

1.6 Optic Character

Not Available

1.7 Crystal System

Not Available

Orthorhombic

1.8 Birefringence

0.004-0.0100.011-0.037

0 0.296

1.9 Clarity

Not Available

Translucent

Riesling Beryl and Dumortierite Optic Character

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

Similar to their colors, Riesling Beryl 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, Riesling Beryl is Not Available while Riesling Beryl is Not Available in appearance.