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Goethite
Goethite

Pleonaste
Pleonaste



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Goethite
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Pleonaste

Goethite and Pleonaste Optical Properties

Optical Properties

Luster

Adamantine
-

Pleochroism

VisibleArthur Thomas
-

Dispersion

0.050.03
0.005 1
👆🏻

Transparency

-
-

Refractive Index

2.26-2.3981.780
1 3.25
👆🏻

Optic Character

-
-

Crystal System

Orthorhombic
-

Birefringence

0.138-9999
0 0.296
👆🏻

Clarity

-
-

Goethite and Pleonaste Optic Character

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

Goethite and Pleonaste Transparency

Similar to their colors, Goethite and Pleonaste 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, Goethite is while Goethite is in appearance.