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Narsarsukite
Narsarsukite

Grandidierite
Grandidierite



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Narsarsukite
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Grandidierite

Narsarsukite and Grandidierite Optical Properties

1 Optical Properties
1.1 Luster
Vitreous, Pearly
Vitreous, Pearly
1.2 Pleochroism
Weak; O = colorless to yellow; E = colorless to honey-yellow
visible
1.3 Dispersion
Albite Optical ..
Not Available
Rank: N/A (Overall)
Not Available
Rank: N/A (Overall)
Fluorite Optical Properties
1.4 Transparency
Transparent, Translucent
Gemmological Tables (2004) More from other references
1.5 Refractive Index
1.610-1.647
1.578-1.639
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
tetragonal
Orthorhombic
1.8 Birefringence
0.021
0.037-0.039
1.9 Clarity
Transparent
Gemmological Tables (2004) More from other references

Narsarsukite and Grandidierite Optic Character

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

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