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Jet and Ammonite Optical Properties


Jet
Ammonite and Jet Optical Properties


Optical Properties

Luster
Waxy   
Not Available   

Pleochroism
AbsentWalter Schumann   
Not Available   

Dispersion
None   
Not Available   

Transparency
Gemmological Tables (2004) More from other references   
Not Available   

Refractive Index
1.640-1.680   
Not Available   

Optic Character
Not Available   
Not Available   

Crystal System
Amorphous   
Trigonal   

Birefringence
Not Available   
Not Available   

Clarity
Gemmological Tables (2004) More from other references   
Not Available   

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Jet and Ammonite Optic Character

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

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Jet and Ammonite Transparency

Similar to their colors, Jet and Ammonite 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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