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Dumortierite
Dumortierite

Morganite
Morganite



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Dumortierite
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Morganite

Dumortierite and Morganite 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
Distinct: pale pink bluish-pinkHerve Nicolas Lazzarelli
1.3 Dispersion
Albite Optical ..
None
Rank: N/A (Overall)
Not Available
Rank: N/A (Overall)
Fluorite Optical Properties
1.4 Transparency
Translucent, Translucent to opaque
Transparent, Translucent, Transparent to translucent
1.5 Refractive Index
1.669-1.723
1.573-1.600
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
Orthorhombic
Hexagonal
1.8 Birefringence
0.011-0.037
0.005-0.009
1.9 Clarity
Translucent
Transparent to translucent

Dumortierite and Morganite Optic Character

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

Similar to their colors, Dumortierite and Morganite 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.