Ammolite Pendant

Availability: Sold
$240.00

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This striking pendant is made from Canadian Ammolite; The fossilized shell of the ancient Cephalopods known as Ammonites, which thrived in the tropical seas of the Upper Cretaceous period, eventually becoming extinct along with the dinosaurs at the end of the Mesozoic era. This piece has been left natural and unpolished on its back and fitted with Sterling Silver.

Ammolite is an opal-like organic gemstone found primarily along the eastern slopes of the Rocky Mountains of North America. It is made of the fossilized shells of ammonites, which in turn are composed primarily of aragonite, the same mineral contained in nacre (Pearl), with a microstructure inherited from the shell. It is one of few biogenic gemstones; others include amber and pearl. In 1981, Ammolite was given official gemstone status by the World Jewellery Confederation.

An iridescent opal-like play of color is shown in fine specimens, mostly in shades of green and red; all the spectral colors are possible, however. The iridescence is due to the microstructure of the aragonite: unlike most other gems, whose colors come from light absorption, the iridescent color of Ammolite comes from interference with the light that rebounds from stacked layers of thin platelets that make up the aragonite. The thicker the layers, the more reds and greens are produced; the thinner the layers, the more blues and violets predominate. Reds and greens are the most commonly seen colors, owing to the greater fragility of the finer layers responsible for the blues.

 

Length: 30mm

Width: 10mm

Height: 35mm

Weight: 7.4g