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Glaucophane
Glaucophane

Danburite
Danburite



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Glaucophane
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Danburite

Glaucophane and Danburite Optical Properties

Optical Properties

Luster

Vitreous, Pearly
Vitreous, Greasy

Pleochroism

Strong
Weak: pale yellow yellow

Dispersion

0.020.02
0.005 1
👆🏻

Transparency

-
-

Refractive Index

1.606-1.6371.627-1.639
1 3.25
👆🏻

Optic Character

-
Biaxial/+

Crystal System

monoclinic
Orthorhombic

Birefringence

-99990.006
0 0.296
👆🏻

Clarity

-
TransparentUlrich Henn and Claudio C. Milisenda

Glaucophane and Danburite Optic Character

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

Glaucophane and Danburite Transparency

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