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Linarite
Linarite

Amblygonite
Amblygonite



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Linarite
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Amblygonite

Linarite and Amblygonite Optical Properties

Optical Properties

Luster

Sub-Adamantine, Vitreous
Vitreous, Pearly

Pleochroism

X = pale blue; Y = blue; Z = Prussian blue
weak to none

Dispersion

0.050.01
0.005 1
👆🏻

Transparency

Transparent
-

Refractive Index

1.809-1.8591.578-1.646
1 3.25
👆🏻

Optic Character

-
Biaxial/+

Crystal System

monoclinic
Triclinic

Birefringence

0.0500.020-0.030
0 0.296
👆🏻

Clarity

Transparent
TransparentUlrich Henn and Claudio C. Milisenda

Linarite and Amblygonite Optic Character

Linarite and Amblygonite optical properties play a significant role while distinguishing these gemstones from each other. These properties are influenced by the Linarite and Amblygonite 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 Amblygonite 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. Amblygonite has Biaxial/+ character.

Linarite and Amblygonite Transparency

Similar to their colors, Linarite and Amblygonite 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.