Labradorite Shield Ring, size 7

Blue labradorite and 925 Sterling Silver Shield Ring from Vaughn Nagel.

Stamped 925, VN

Size: 7

Labradorite can display an iridescent optical effect (or schiller) known as labradorescence. The term labradoresence was coined by Ove Balthasar Bøggild, who defined it (labradorization) as follows: Labradorization is the peculiar reflection of the light from submicroscopical planes orientated in one direction (rarely in two directions); these planes have never such a position that they can be expressed by simple indices, and they are not directly visible under the microscope.

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