Prase and Jet Optical Properties

Prase

Jet

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1 Optical Properties

1.1 Luster

Not Available

Waxy

1.2 Pleochroism

Not Available

AbsentWalter Schumann

1.3 Dispersion

NANone

0.007 1

1.4 Transparency

Transparent, Translucent

Gemmological Tables (2004) More from other references

1.5 Refractive Index

1.544-1.5531.640-1.680

1 3.25

1.6 Optic Character

Not Available

1.7 Crystal System

Not Available

Amorphous

1.8 Birefringence

0.009Not Available

0 0.296

1.9 Clarity

Transparent

Gemmological Tables (2004) More from other references

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.

Compare Blue Gemstones

Prase Vs Rubellite

Prase Vs Sapphire

Prase Vs Sanidine

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.