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Prase and Jet Optical Properties


Jet
Jet and Prase Optical Properties


Optical Properties

Luster
Not Available   
Waxy   

Pleochroism
Not Available   
AbsentWalter Schumann   

Dispersion
Not Available   
None   

Transparency
Transparent, Translucent   
Gemmological Tables (2004) More from other references   

Refractive Index
1.544-1.553   
1.640-1.680   

Optic Character
Not Available   
Not Available   

Crystal System
Not Available   
Amorphous   

Birefringence
0.009   
Not Available   

Clarity
Transparent   
Gemmological Tables (2004) More from other references   

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<< Physical Properties

Prase and Jet Optic Character

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

Similar to their colors, Prase 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, Prase is Translucent and Transparent while Prase is Translucent and Transparent in appearance.

Blue Gemstones

Blue Gemstones


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