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Smithsonite
Smithsonite

Danburite
Danburite



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Smithsonite and Danburite Optical Properties

1 Optical Properties
1.1 Luster
Vitreous, Pearly
Vitreous, Greasy
1.2 Pleochroism
AbsentWalter Schumann
Weak: pale yellow yellow
1.3 Dispersion
Albite Optical ..
0.01
Rank: 26 (Overall)
0.02
Rank: 22 (Overall)
Fluorite Optical Properties
1.4 Transparency
Translucent
Gemmological Tables (2004) More from other references
1.5 Refractive Index
1.620-1.850
1.627-1.639
1.6 Optic Character
Not Available
Biaxial/+
1.7 Crystal System
Trigonal
Orthorhombic
1.8 Birefringence
0.223-0.227
0.006
1.9 Clarity
Translucent
TransparentUlrich Henn and Claudio C. Milisenda

Smithsonite and Danburite Optic Character

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

Smithsonite and Danburite Transparency

Similar to their colors, Smithsonite 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, Smithsonite is Translucent while Smithsonite is Translucent in appearance.