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Sard
Sard

Linarite
Linarite



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Sard
X
Linarite

Sard and Linarite Optical Properties

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Optical Properties

Luster

Waxy
Sub-Adamantine, Vitreous

Pleochroism

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

Dispersion

0.010.05
0.005 1
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Transparency

Translucent
Transparent

Refractive Index

1.535-1.5391.809-1.859
1 3.25
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Optic Character

-
-

Crystal System

-
monoclinic

Birefringence

0.008-0.0100.050
0 0.296
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Clarity

Translucent
Transparent

Sard and Linarite Optic Character

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

Sard and Linarite Transparency

Similar to their colors, Sard 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, Sard is Translucent while Sard is Translucent in appearance.