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Andalusite
Andalusite

Narsarsukite
Narsarsukite



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Andalusite
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Narsarsukite

Andalusite and Narsarsukite Optical Properties

1 Optical Properties
1.1 Luster
Vitreous, Greasy
Vitreous, Pearly
1.2 Pleochroism
strongly trichroic
Weak; O = colorless to yellow; E = colorless to honey-yellow
1.3 Dispersion
0.02NA
Fluorite Optical Properties
0.007 1
1.4 Transparency
Transparent, Translucent
Transparent, Translucent
1.5 Refractive Index
1.627-1.6501.610-1.647
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
Orthorhombic
tetragonal
1.8 Birefringence
0.009-0.0100.021
Achroite
0 0.296
1.9 Clarity
Transparent
Transparent

Andalusite and Narsarsukite Optic Character

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

Andalusite and Narsarsukite Transparency

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