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Ammonite and Jet Optical Properties


Jet
Jet and Ammonite Optical Properties


Optical Properties

Luster
Not Available   
Waxy   

Pleochroism
Not Available   
AbsentWalter Schumann   

Dispersion
Not Available   
None   

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

Refractive Index
Not Available   
1.640-1.680   

Optic Character
Not Available   
Not Available   

Crystal System
Trigonal   
Amorphous   

Birefringence
Not Available   
Not Available   

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

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<< Physical Properties

Ammonite and Jet Optic Character

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

Similar to their colors, Ammonite and Jet 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, Ammonite is Not Available while Ammonite is Not Available in appearance.

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