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Astrophyllite
Astrophyllite

Aegirine
Aegirine



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Astrophyllite
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Aegirine

Astrophyllite and Aegirine Optical Properties

1 Optical Properties
1.1 Luster
Greasy, Pearly
Vitreous, Resinous
1.2 Pleochroism
Strong: X= deep red-orange Y= orange-yellow Z= lemon-yellow
X = emerald green
1.3 Dispersion
NANA
Fluorite Optical Properties
0.007 1
1.4 Transparency
Translucent
Gemmological Tables (2004) More from other references
1.5 Refractive Index
1.678-1.7581.720-1.778
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
Triclinic
monoclinic
1.8 Birefringence
0.0500.037-0.061
Achroite
0 0.296
1.9 Clarity
Translucent
Gemmological Tables (2004) More from other references

Astrophyllite and Aegirine Optic Character

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

Astrophyllite and Aegirine Transparency

Similar to their colors, Astrophyllite 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, Astrophyllite is Translucent while Astrophyllite is Translucent in appearance.