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Charoite
Charoite

Danburite
Danburite



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Charoite
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Danburite

Charoite and Danburite Optical Properties

1 Optical Properties
1.1 Luster
Pearly, Fibrous, Chatoyant
Vitreous, Greasy
1.2 Pleochroism
NilArthur Thomas
Weak: pale yellow yellow
1.3 Dispersion
NA0.02
Fluorite Optical Properties
0.007 1
1.4 Transparency
Translucent
Gemmological Tables (2004) More from other references
1.5 Refractive Index
1.545-1.5601.627-1.639
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Biaxial/+
1.7 Crystal System
Triclinic
Orthorhombic
1.8 Birefringence
0.0090.006
Achroite
0 0.296
1.9 Clarity
Translucent
TransparentUlrich Henn and Claudio C. Milisenda

Charoite and Danburite Optic Character

Charoite and Danburite optical properties play a significant role while distinguishing these gemstones from each other. These properties are influenced by the Charoite and Danburite 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 Charoite and Danburite 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. Danburite has Biaxial/+ character.

Charoite and Danburite Transparency

Similar to their colors, Charoite and Danburite 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, Charoite is Translucent while Charoite is Translucent in appearance.