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Narsarsukite
Narsarsukite

Achroite
Achroite



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Narsarsukite
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Achroite

Narsarsukite and Achroite Optical Properties

Optical Properties

Luster

Vitreous, Pearly
-

Pleochroism

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

Dispersion

0.020.02
0.005 1
👆🏻

Transparency

Transparent, Translucent
Transparent, Translucent

Refractive Index

1.610-1.6471.614-1.666
1 3.25
👆🏻

Optic Character

-
-

Crystal System

tetragonal
-

Birefringence

0.0210.014-0.040
0 0.296
👆🏻

Clarity

Transparent
Transparent

Narsarsukite and Achroite Optic Character

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

Narsarsukite and Achroite Transparency

Similar to their colors, Narsarsukite and Achroite 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, Narsarsukite is Transparent and Translucent while Narsarsukite is Transparent and Translucent in appearance.