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Narsarsukite
Narsarsukite

Apatite
Apatite



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Narsarsukite
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Apatite

Narsarsukite and Apatite Optical Properties

1 Optical Properties
1.1 Luster
Vitreous, Pearly
Vitreous
1.2 Pleochroism
Weak; O = colorless to yellow; E = colorless to honey-yellow
Blue stones – strong
1.3 Dispersion
NA0.01
Fluorite Optical Properties
0.007 1
1.4 Transparency
Transparent, Translucent
Gemmological Tables (2004) More from other references
1.5 Refractive Index
1.610-1.6471.628-1.651
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
tetragonal
Hexagonal
1.8 Birefringence
0.0210.002-0.008
Achroite
0 0.296
1.9 Clarity
Transparent
TransparentUlrich Henn and Claudio C. Milisenda

Narsarsukite and Apatite Optic Character

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

Similar to their colors, Narsarsukite and Apatite 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.