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Aegirine
Aegirine

Tourmaline
Tourmaline



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Aegirine
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Tourmaline

Aegirine and Tourmaline Optical Properties

1 Optical Properties
1.1 Luster
Vitreous, Resinous
Vitreous
1.2 Pleochroism
X = emerald green
typically moderate to strong
1.3 Dispersion
NA0.02
Fluorite Optical Properties
0.007 1
1.4 Transparency
Gemmological Tables (2004) More from other references
Transparent, Translucent, Transparent to opaque
1.5 Refractive Index
1.720-1.7781.614-1.666
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
monoclinic
Trigonal
1.8 Birefringence
0.037-0.0610.014-0.040
Achroite
0 0.296
1.9 Clarity
Gemmological Tables (2004) More from other references
Transparent

Aegirine and Tourmaline Optic Character

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

Similar to their colors, Aegirine and Tourmaline 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.