Obsidian Sphere - Height: 8.28 cm - Width: 8.28 cm- 610 g - (1)

Obsidian is a volcanic glass whose formation is due to the very rapid cooling of the lava, always rich in silicate ions. Obsidian is a natural glass, very similar to that of human production.

A highly sought after raw material in ancient times for the manufacture of sharp tools (mainly knives) , it was one of the goods that animated Mediterranean trade and supported the economic life of the places of extraction. Today it is still processed into small decorative objects, jewellery, scalpel blades.

Splendid obsidian sphere, from Mexico.

Weight: 610g
Diameter: 8. 28cm