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Spodumene
Spodumene

Danburite
Danburite



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Spodumene and Danburite Optical Properties

1 Optical Properties
1.1 Luster
Vitreous
Vitreous, Greasy
1.2 Pleochroism
Strong in kunzite: α-purple
Weak: pale yellow yellow
1.3 Dispersion
Albite Optical ..
0.02
Rank: 22 (Overall)
0.02
Rank: 22 (Overall)
Fluorite Optical Properties
1.4 Transparency
Transparent
Gemmological Tables (2004) More from other references
1.5 Refractive Index
1.657-1.681
1.627-1.639
1.6 Optic Character
Not Available
Biaxial/+
1.7 Crystal System
monoclinic
Orthorhombic
1.8 Birefringence
0.014-0.018
0.006
1.9 Clarity
Gems
TransparentUlrich Henn and Claudio C. Milisenda

Spodumene and Danburite Optic Character

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

Spodumene and Danburite Transparency

Similar to their colors, Spodumene 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, Spodumene is Transparent while Spodumene is Transparent in appearance.