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Jet
Jet

Amethyst
Amethyst



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Amethyst

Jet and Amethyst Optical Properties

Jet
Jet
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1 Optical Properties
1.1 Luster
Waxy
Vitreous
1.2 Pleochroism
AbsentWalter Schumann
None
1.3 Dispersion
None0.01
Fluorite Optical Properties
0.007 1
1.4 Transparency
Gemmological Tables (2004) More from other references
Transparent, Transparent to translucent
1.5 Refractive Index
1.640-1.6801.544-1.553
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
Amorphous
Trigonal
1.8 Birefringence
Not Available0.009
Achroite
0 0.296
1.9 Clarity
Gemmological Tables (2004) More from other references
Transparent

Jet and Amethyst Optic Character

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

Similar to their colors, Jet and Amethyst 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.