Vivianite and Linarite Optical Properties

Vivianite

Linarite

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1 Optical Properties

1.1 Luster

Vitreous, Pearly

Sub-Adamantine, Vitreous

1.2 Pleochroism

Anomalous plechroism is strong with colours deep blue/pale yellowish green/yellowish green.Michael OâDonoghue

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

1.3 Dispersion

NANA

0.007 1

1.4 Transparency

Transparent

1.5 Refractive Index

1.560-1.6401.809-1.859

1 3.25

1.6 Optic Character

Not Available

1.7 Crystal System

Not Available

monoclinic

1.8 Birefringence

0.054-0.0750.050

0 0.296

1.9 Clarity

Transparent

Vivianite and Linarite Optic Character

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

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