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Chrysoberyl
Chrysoberyl

Amblygonite
Amblygonite



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Chrysoberyl
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Amblygonite

Chrysoberyl and Amblygonite Optical Properties

1 Optical Properties
1.1 Luster
Vitreous
Vitreous, Pearly
1.2 Pleochroism
X = red; Y = yellow-orange; Z = emerald-green
weak to none
1.3 Dispersion
Albite Optical ..
0.02
Rank: 24 (Overall)
0.01
Rank: 26 (Overall)
Fluorite Optical Properties
1.4 Transparency
Transparent, Translucent, Transparent to translucent
Gemmological Tables (2004) More from other references
1.5 Refractive Index
1.746-1.763
1.578-1.646
1.6 Optic Character
Biaxial/+
Biaxial/+
1.7 Crystal System
Orthorhombic
Triclinic
1.8 Birefringence
0.007-0.013
0.020-0.030
1.9 Clarity
Transparent
TransparentUlrich Henn and Claudio C. Milisenda

Chrysoberyl and Amblygonite Optic Character

Chrysoberyl and Amblygonite optical properties play a significant role while distinguishing these gemstones from each other. These properties are influenced by the Chrysoberyl and Amblygonite 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 Chrysoberyl and Amblygonite 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. Chrysoberyl has Biaxial/+ character.Amblygonite has Biaxial/+ character.

Chrysoberyl and Amblygonite Transparency

Similar to their colors, Chrysoberyl and Amblygonite 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, Chrysoberyl is Translucent, Transparent and Transparent to translucent while Chrysoberyl is Translucent, Transparent and Transparent to translucent in appearance.