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Ammolite
Ammolite

Dumortierite
Dumortierite



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Ammolite
X
Dumortierite

Ammolite and Dumortierite Optical Properties

1 Optical Properties
1.1 Luster
Silky, Vitreous
Vitreous
1.2 Pleochroism
None
Strong; X = deep blue or violet; Y = yellow to red-violet or nearly colorless; Z = colorless or very pale blue
1.3 Dispersion
NANone
Fluorite Optical Properties
0.007 1
1.4 Transparency
Not Available
Translucent, Translucent to opaque
1.5 Refractive Index
1.520-1.6701.669-1.723
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
Trigonal
Orthorhombic
1.8 Birefringence
0.135-0.1450.011-0.037
Achroite
0 0.296
1.9 Clarity
Not Available
Translucent

Ammolite and Dumortierite Optic Character

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

Ammolite and Dumortierite Transparency

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