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Akoya pearl
Akoya pearl

Beryllonite
Beryllonite



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Akoya pearl
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Beryllonite

Akoya pearl and Beryllonite Optical Properties

1 Optical Properties
1.1 Luster
Not Available
Vitreous, Adamantine, Pearly
1.2 Pleochroism
Not Available
AbsentWalter Schumann
1.3 Dispersion
NA0.01
Fluorite Optical Properties
0.007 1
1.4 Transparency
Not Available
Gemmological Tables (2004) More from other references
1.5 Refractive Index
Not Available1.552-1.562
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
Not Available
monoclinic
1.8 Birefringence
Not Available0.009
Achroite
0 0.296
1.9 Clarity
Not Available
TransparentUlrich Henn and Claudio C. Milisenda

Akoya pearl and Beryllonite Optic Character

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

Akoya pearl and Beryllonite Transparency

Similar to their colors, Akoya pearl and Beryllonite 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, Akoya pearl is Not Available while Akoya pearl is Not Available in appearance.