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Austinite
Austinite

Danburite
Danburite



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Austinite
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Danburite

Austinite and Danburite Optical Properties

1 Optical Properties
1.1 Luster
Subadamantine, Silky, Fibrous
Vitreous, Greasy
1.2 Pleochroism
Not Available
Weak: pale yellow yellow
1.3 Dispersion
Albite Optical ..
Not Available
Rank: N/A (Overall)
0.02
Rank: 22 (Overall)
Fluorite Optical Properties
1.4 Transparency
Not Available
Gemmological Tables (2004) More from other references
1.5 Refractive Index
1.759
1.627-1.639
1.6 Optic Character
Not Available
Biaxial/+
1.7 Crystal System
Orthorhombic
Orthorhombic
1.8 Birefringence
0.024
0.006
1.9 Clarity
Not Available
TransparentUlrich Henn and Claudio C. Milisenda

Austinite and Danburite Optic Character

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

Austinite and Danburite Transparency

Similar to their colors, Austinite 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, Austinite is Not Available while Austinite is Not Available in appearance.