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Narsarsukite
Narsarsukite

Siderite
Siderite



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Narsarsukite
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Siderite

Narsarsukite and Siderite Optical Properties

Optical Properties

Luster

Vitreous, Pearly
Pearly

Pleochroism

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

Dispersion

0.020.04
0.005 1
👆🏻

Transparency

Transparent, Translucent
Transparent, Translucent

Refractive Index

1.610-1.6471.633-1.875
1 3.25
👆🏻

Optic Character

-
-

Crystal System

tetragonal
Trigonal

Birefringence

0.0210.242
0 0.296
👆🏻

Clarity

Transparent
Transparent

Narsarsukite and Siderite Optic Character

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

Similar to their colors, Narsarsukite and Siderite 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.