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Thulite
Thulite

Narsarsukite
Narsarsukite



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Thulite
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Narsarsukite

Thulite and Narsarsukite Optical Properties

Optical Properties

Luster

Pleochroism

Dispersion

Transparency

Refractive Index

Optic Character

Crystal System

Birefringence

Clarity

 
Vitreous
Present
0.02
Opaque, Translucent, Opaque . May be translucent in thin backlit sections.
1.695
-
Orthorhombic
0.006-0.018
OpaqueHerve Nicolas Lazzarelli
 
Vitreous, Pearly
Weak; O = colorless to yellow; E = colorless to honey-yellow
0.02
Transparent, Translucent
1.610-1.647
-
tetragonal
0.021
Transparent

Thulite and Narsarsukite Optic Character

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

Thulite and Narsarsukite Transparency

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