Dioptase and Jet Optical Properties

Dioptase

Jet

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1 Optical Properties

1.1 Luster

Vitreous

Waxy

1.2 Pleochroism

Weak; dark emerald green

AbsentWalter Schumann

1.3 Dispersion

0.04None

0.007 1

1.4 Transparency

TranslucentHerve Nicolas Lazzarelli

Gemmological Tables (2004) More from other references

1.5 Refractive Index

1.644-1.7201.640-1.680

1 3.25

1.6 Optic Character

Not Available

1.7 Crystal System

Trigonal

Amorphous

1.8 Birefringence

0.051-0.053Not Available

0 0.296

1.9 Clarity

TranslucentHerve Nicolas Lazzarelli

Gemmological Tables (2004) More from other references

Dioptase and Jet Optic Character

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

Similar to their colors, Dioptase 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, Dioptase is TranslucentHerve Nicolas Lazzarelli while Dioptase is TranslucentHerve Nicolas Lazzarelli in appearance.