Jet and Akoya pearl Optical Properties

Jet

Akoya pearl

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1 Optical Properties

1.1 Luster

Waxy

Not Available

1.2 Pleochroism

AbsentWalter Schumann

Not Available

1.3 Dispersion

NoneNA

0.007 1

1.4 Transparency

Gemmological Tables (2004) More from other references

Not Available

1.5 Refractive Index

1.640-1.680Not Available

1 3.25

1.6 Optic Character

Not Available

1.7 Crystal System

Amorphous

Not Available

1.8 Birefringence

Not AvailableNot Available

0 0.296

1.9 Clarity

Gemmological Tables (2004) More from other references

Not Available

Jet and Akoya pearl Optic Character

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

Similar to their colors, Jet and Akoya pearl 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.