Linarite and Jet Optical Properties

Linarite

Jet

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1 Optical Properties

1.1 Luster

Sub-Adamantine, Vitreous

Waxy

1.2 Pleochroism

X = pale blue; Y = blue; Z = Prussian blue

AbsentWalter Schumann

1.3 Dispersion

NANone

0.007 1

1.4 Transparency

Transparent

Gemmological Tables (2004) More from other references

1.5 Refractive Index

1.809-1.8591.640-1.680

1 3.25

1.6 Optic Character

Not Available

1.7 Crystal System

monoclinic

Amorphous

1.8 Birefringence

0.050Not Available

0 0.296

1.9 Clarity

Transparent

Gemmological Tables (2004) More from other references

Linarite and Jet Optic Character

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

Similar to their colors, Linarite 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, Linarite is Transparent while Linarite is Transparent in appearance.