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Powellite
Powellite

Aegirine
Aegirine



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Powellite
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Aegirine

Powellite and Aegirine Optical Properties

1 Optical Properties
1.1 Luster
Greasy, Subadamantine
Vitreous, Resinous
1.2 Pleochroism
In deeply colored specimens: blue greenAnthony et al
X = emerald green
1.3 Dispersion
NANA
Fluorite Optical Properties
0.007 1
1.4 Transparency
Transparent
Gemmological Tables (2004) More from other references
1.5 Refractive Index
1.974-1.9841.720-1.778
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
Not Available
monoclinic
1.8 Birefringence
Not Available0.037-0.061
Achroite
0 0.296
1.9 Clarity
Transparent
Gemmological Tables (2004) More from other references

Powellite and Aegirine Optic Character

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

Powellite and Aegirine Transparency

Similar to their colors, Powellite and Aegirine 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, Powellite is Transparent while Powellite is Transparent in appearance.