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Anglesite
Anglesite

Dumortierite
Dumortierite



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X
Anglesite
X
Dumortierite

Anglesite and Dumortierite Optical Properties

Optical Properties

Luster

Pleochroism

Dispersion

Transparency

Refractive Index

Optic Character

Crystal System

Birefringence

Clarity

 
Adamantine
-
0.04
Transparent
1.877-1.894
-
Orthorhombic
0.017
Transparent
 
Vitreous
Strong; X = deep blue or violet; Y = yellow to red-violet or nearly colorless; Z = colorless or very pale blue
0.01
Translucent, Translucent to opaque
1.669-1.723
-
Orthorhombic
0.011-0.037
Translucent

Anglesite and Dumortierite Optic Character

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

Anglesite and Dumortierite Transparency

Similar to their colors, Anglesite 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, Anglesite is while Anglesite is in appearance.