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Goethite
Goethite

Narsarsukite
Narsarsukite



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Goethite
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Narsarsukite

Goethite and Narsarsukite Optical Properties

Optical Properties

Luster

Adamantine
Vitreous, Pearly

Pleochroism

VisibleArthur Thomas
Weak; O = colorless to yellow; E = colorless to honey-yellow

Dispersion

0.050.02
0.005 1
👆🏻

Transparency

-
Transparent, Translucent

Refractive Index

2.26-2.3981.610-1.647
1 3.25
👆🏻

Optic Character

-
-

Crystal System

Orthorhombic
tetragonal

Birefringence

0.1380.021
0 0.296
👆🏻

Clarity

-
Transparent

Goethite and Narsarsukite Optic Character

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

Similar to their colors, Goethite and Narsarsukite 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.