Coral red natural circle "donut" d20 mm

Coral red natural stabilized circle " donut".
Size: d20mm, inner d6mm, thickness 3,5 mm.

The price for one thing48,40 rubles.

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Coral-one of the first materials that people began to use as decoration. Coral framed with gold or silver was found during excavations of ancient cities.
Most often, coral is called a stone, but this is not quite true. It has nothing to do with the classic minerals that we are used to seeing in jewelry. Like pearls, it originates in water and is a fine-grained calcareous skeleton of coral polyps-invertebrates living in salt waters. They're building this skeleton to protect themselves. . Usually polyps live in colonies and gradually form beautiful coral reefs.