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Danburite
Danburite

Vesuvianite Idocrase
Vesuvianite Idocrase



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Danburite
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Vesuvianite Idocrase

Danburite and Vesuvianite Idocrase Optical Properties

1 Optical Properties
1.1 Luster
Vitreous, Greasy
Not Available
1.2 Pleochroism
Weak: pale yellow yellow
Not Available
1.3 Dispersion
0.020.02
Fluorite Optical Properties
0.007 1
1.4 Transparency
Gemmological Tables (2004) More from other references
Transparent
1.5 Refractive Index
1.627-1.6391.700-1.725
Agate Opal
1 3.25
1.6 Optic Character
Biaxial/+
Uniaxial/-
1.7 Crystal System
Orthorhombic
Not Available
1.8 Birefringence
0.0060.002-0.012
Achroite
0 0.296
1.9 Clarity
TransparentUlrich Henn and Claudio C. Milisenda
Transparent

Danburite and Vesuvianite Idocrase Optic Character

Danburite and Vesuvianite Idocrase optical properties play a significant role while distinguishing these gemstones from each other. These properties are influenced by the Danburite and Vesuvianite Idocrase 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 Danburite and Vesuvianite Idocrase 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.Vesuvianite Idocrase has Uniaxial/- character.

Danburite and Vesuvianite Idocrase Transparency

Similar to their colors, Danburite and Vesuvianite Idocrase 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, Danburite is Gemmological Tables (2004) More from other references while Danburite is Gemmological Tables (2004) More from other references in appearance.