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Helenite
Helenite

Linarite
Linarite



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Helenite
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Linarite

Helenite and Linarite Optical Properties

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Optical Properties

Luster

-
Sub-Adamantine, Vitreous

Pleochroism

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

Dispersion

0.040.05
0.005 1
👆🏻

Transparency

-
Transparent

Refractive Index

-99991.809-1.859
1 3.25
👆🏻

Optic Character

-
-

Crystal System

-
monoclinic

Birefringence

-99990.050
0 0.296
👆🏻

Clarity

-
Transparent

Helenite and Linarite Optic Character

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

Helenite and Linarite Transparency

Similar to their colors, Helenite 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, Helenite is while Helenite is in appearance.