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Baddeleyite
Baddeleyite

Dumortierite
Dumortierite



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Baddeleyite
X
Dumortierite

Baddeleyite and Dumortierite Optical Properties

Optical Properties

Luster

Adamantine
Vitreous

Pleochroism

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

Dispersion

0.040.01
0.005 1
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Transparency

Transparent
Translucent, Translucent to opaque

Refractive Index

2.13-2.201.669-1.723
1 3.25
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Optic Character

-
-

Crystal System

Monoclinic Prismatic H-M Symbol (2/m) Space Group: P 21/c
Orthorhombic

Birefringence

0.070.011-0.037
0 0.296
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Clarity

Transparent
Translucent

Baddeleyite and Dumortierite Optic Character

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

Baddeleyite and Dumortierite Transparency

Similar to their colors, Baddeleyite 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, Baddeleyite is Transparent while Baddeleyite is Transparent in appearance.