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Faustite
Faustite

Danburite
Danburite



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Faustite
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Danburite

Faustite and Danburite Optical Properties

1 Optical Properties
1.1 Luster
Waxy
Vitreous, Greasy
1.2 Pleochroism
Not Available
Weak: pale yellow yellow
1.3 Dispersion
NA0.02
Fluorite Optical Properties
0.007 1
2.5 Transparency
Translucent
Gemmological Tables (2004) More from other references
2.6 Refractive Index
1.6121.627-1.639
Agate Opal
1 3.25
2.10 Optic Character
Not Available
Biaxial/+
2.11 Crystal System
Triclinic Pinacoidal H-M Symbol ( 1) Space Group: P1
Orthorhombic
2.12 Birefringence
Not Available0.006
Achroite
0 0.296
3.4 Clarity
Translucent
TransparentUlrich Henn and Claudio C. Milisenda

Faustite and Danburite Optic Character

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

Faustite and Danburite Transparency

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