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Linarite
Linarite

Legrandite
Legrandite



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X
Linarite
X
Legrandite

Linarite and Legrandite Optical Properties

Optical Properties

Luster

Sub-Adamantine, Vitreous
Vitreous

Pleochroism

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

Dispersion

0.050.03
0.005 1
👆🏻

Transparency

Transparent
-

Refractive Index

1.809-1.8591.702-1.740
1 3.25
👆🏻

Optic Character

-
-

Crystal System

monoclinic
monoclinic

Birefringence

0.0500.060
0 0.296
👆🏻

Clarity

Transparent
-

Linarite and Legrandite Optic Character

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

Linarite and Legrandite Transparency

Similar to their colors, Linarite and Legrandite 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.