Linarite and Erythrite Optical Properties

Linarite

Erythrite

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1 Optical Properties

1.1 Luster

Sub-Adamantine, Vitreous

Subadamantine, Pearly

1.2 Pleochroism

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

Visible: X = pale pinkish to pale rose; Y = pale violet to pale violet-rose; Z = deep red

1.3 Dispersion

NANA

0.007 1

1.4 Transparency

Transparent

Not Available

1.5 Refractive Index

1.809-1.8591.626-1.629

1 3.25

1.6 Optic Character

Not Available

1.7 Crystal System

monoclinic

1.8 Birefringence

0.050Not Available

0 0.296

1.9 Clarity

Transparent

Not Available

Linarite and Erythrite Optic Character

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

Similar to their colors, Linarite and Erythrite 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.