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Aegirine
Aegirine

Cordierite
Cordierite



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Aegirine
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Cordierite

Aegirine and Cordierite Optical Properties

1 Optical Properties
1.1 Luster
Vitreous, Resinous
Greasy, Vitreous
1.2 Pleochroism
X = emerald green
X = pale yellow
1.3 Dispersion
NANA
Fluorite Optical Properties
0.007 1
1.4 Transparency
Gemmological Tables (2004) More from other references
Not Available
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
Orthorhombic
1.8 Birefringence
0.037-0.061Not Available
Achroite
0 0.296
1.9 Clarity
Gemmological Tables (2004) More from other references
Not Available

Aegirine and Cordierite Optic Character

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

Similar to their colors, Aegirine and Cordierite 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.