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Aegirine
Aegirine

Selenite
Selenite



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Aegirine
X
Selenite

Aegirine and Selenite Optical Properties

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1 Optical Properties
1.1 Luster
Vitreous, Resinous
Vitreous
1.2 Pleochroism
X = emerald green
Not Available
1.3 Dispersion
NANA
Fluorite Optical Properties
0.007 1
1.4 Transparency
Gemmological Tables (2004) More from other references
Transparent
1.5 Refractive Index
1.720-1.778Not Available
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
monoclinic
monoclinic
1.8 Birefringence
0.037-0.061Not Available
Achroite
0 0.296
1.9 Clarity
Gemmological Tables (2004) More from other references
Transparent

Aegirine and Selenite Optic Character

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

Aegirine and Selenite Transparency

Similar to their colors, Aegirine and Selenite 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, Aegirine is Gemmological Tables (2004) More from other references while Aegirine is Gemmological Tables (2004) More from other references in appearance.