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Axinite
Axinite

Danburite
Danburite



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Axinite
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Danburite

Axinite and Danburite Optical Properties

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Optical Properties

Luster

Vitreous
Vitreous, Greasy

Pleochroism

Strong
Weak: pale yellow yellow

Dispersion

0.020.02
0.005 1
👆🏻

Transparency

-
-

Refractive Index

1.656-1.7041.627-1.639
1 3.25
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Optic Character

Biaxial/+
Biaxial/+

Crystal System

Triclinic
Orthorhombic

Birefringence

0.009-0.0120.006
0 0.296
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Clarity

TransparentUlrich Henn and Claudio C. Milisenda
TransparentUlrich Henn and Claudio C. Milisenda

Axinite and Danburite Optic Character

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

Axinite and Danburite Transparency

Similar to their colors, Axinite 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, Axinite is while Axinite is in appearance.