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Augelite
Augelite

Afghanite
Afghanite



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Augelite and Afghanite Optical Properties

1 Optical Properties
1.1 Luster
Pearly
Vitreous
1.2 Pleochroism
NilArthur Thomas
Not Available
1.3 Dispersion
Albite Optical ..
Not Available
Rank: N/A (Overall)
Not Available
Rank: N/A (Overall)
Fluorite Optical Properties
1.4 Transparency
Gemmological Tables (2004) More from other references
Transparent, Gemstones (2009)
1.5 Refractive Index
1.570-1.591
1.523
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
Trigonal
1.8 Birefringence
0.020-0.021
0.006
1.9 Clarity
TransparentUlrich Henn and Claudio C. Milisenda
Transparent

Augelite and Afghanite Optic Character

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

Similar to their colors, Augelite and Afghanite 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.

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