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Nepheline
Nepheline

Adamite
Adamite



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Nepheline
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Adamite

Nepheline and Adamite Optical Properties

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1 Optical Properties
1.1 Luster
Vitreous, Greasy
Vitreous
1.2 Pleochroism
Not Available
NilArthur Thomas
1.3 Dispersion
NANA
Fluorite Optical Properties
0.007 1
1.4 Transparency
Transparent, Translucent
Transparent
1.5 Refractive Index
1.529-1.5471.708-1.722
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Biaxial/+
1.7 Crystal System
Hexagonal
Orthorhombic
1.8 Birefringence
0.003-0.0040.031-0.050
Achroite
0 0.296
1.9 Clarity
Transparent
Transparent

Nepheline and Adamite Optic Character

Nepheline and Adamite optical properties play a significant role while distinguishing these gemstones from each other. These properties are influenced by the Nepheline and Adamite 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 Nepheline and Adamite 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. Adamite has Biaxial/+ character.

Nepheline and Adamite Transparency

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