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Nepheline
Nepheline

Opal Ethiopia
Opal Ethiopia



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Nepheline
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Opal Ethiopia

Nepheline and Opal Ethiopia Optical Properties

1 Optical Properties
1.1 Luster
Vitreous, Greasy
Not Available
1.2 Pleochroism
Not Available
Not Available
1.3 Dispersion
NANA
Fluorite Optical Properties
0.007 1
1.4 Transparency
Transparent, Translucent
Not Available
1.5 Refractive Index
1.529-1.5471.42-1.47
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
Hexagonal
Amorphous
1.8 Birefringence
0.003-0.004Not Available
Achroite
0 0.296
1.9 Clarity
Transparent
Color grading system

Nepheline and Opal Ethiopia Optic Character

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

Nepheline and Opal Ethiopia Transparency

Similar to their colors, Nepheline and Opal Ethiopia 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.