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Celestine
Celestine

Dumortierite
Dumortierite



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Celestine
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Dumortierite

Celestine and Dumortierite Optical Properties

1 Optical Properties
1.1 Luster
Vitreous, Pearly
Vitreous
1.2 Pleochroism
Weakly trichroiC
Strong; X = deep blue or violet; Y = yellow to red-violet or nearly colorless; Z = colorless or very pale blue
1.3 Dispersion
Albite Optical ..
Not Available
Rank: N/A (Overall)
None
Rank: N/A (Overall)
Fluorite Optical Properties
1.4 Transparency
Gems
Translucent, Translucent to opaque
1.5 Refractive Index
1.619-1.635
1.669-1.723
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
Orthorhombic
Orthorhombic
1.8 Birefringence
0.004-0.012
0.011-0.037
1.9 Clarity
Gems
Translucent

Celestine and Dumortierite Optic Character

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

Celestine and Dumortierite Transparency

Similar to their colors, Celestine 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, Celestine is Gems while Celestine is Gems in appearance.