×

Dumortierite
Dumortierite

Leucite
Leucite



ADD
Compare
X
Dumortierite
X
Leucite

Dumortierite and Leucite Optical Properties

1 Optical Properties
1.1 Luster
Vitreous
Vitreous
1.2 Pleochroism
Strong; X = deep blue or violet; Y = yellow to red-violet or nearly colorless; Z = colorless or very pale blue
Not Available
1.3 Dispersion
None0.01
Fluorite Optical Properties
0.007 1
1.4 Transparency
Translucent, Translucent to opaque
Gemmological Tables (2004) More from other references
1.5 Refractive Index
1.669-1.7231.504-1.510
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
Orthorhombic
tetragonal
1.8 Birefringence
0.011-0.0370.001
Achroite
0 0.296
1.9 Clarity
Translucent
TransparentUlrich Henn and Claudio C. Milisenda

Dumortierite and Leucite Optic Character

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

Dumortierite and Leucite Transparency

Similar to their colors, Dumortierite and Leucite 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, Dumortierite is Translucent and Translucent to opaque while Dumortierite is Translucent and Translucent to opaque in appearance.