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Jet
Jet

Anhydrite
Anhydrite



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Anhydrite

Jet and Anhydrite Optical Properties

Jet
Jet
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1 Optical Properties
1.1 Luster
Waxy
Pearly, Greasy
1.2 Pleochroism
AbsentWalter Schumann
For violet varieties
1.3 Dispersion
Albite Optical ..
None
Rank: N/A (Overall)
0.01
Rank: 27 (Overall)
Fluorite Optical Properties
1.4 Transparency
Gemmological Tables (2004) More from other references
Transparent
1.5 Refractive Index
1.640-1.680
1.570-1.614
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
Amorphous
Orthorhombic
1.8 Birefringence
Not Available
0.042-0.044
1.9 Clarity
Gemmological Tables (2004) More from other references
Transparent

Jet and Anhydrite Optic Character

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

Jet and Anhydrite Transparency

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

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