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Augelite
Augelite

Riebeckite
Riebeckite



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Augelite
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Riebeckite

Augelite and Riebeckite Optical Properties

1 Optical Properties
1.1 Luster
Pearly
Vitreous, Silky
1.2 Pleochroism
NilArthur Thomas
X = blue
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
1.570-1.5911.680-1.698
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
monoclinic
1.8 Birefringence
0.020-0.0210.005-0.008
Achroite
0 0.296
1.9 Clarity
TransparentUlrich Henn and Claudio C. Milisenda
Not Available

Augelite and Riebeckite Optic Character

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

Augelite and Riebeckite Transparency

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