Carnelian Agate Vertebrae


Organic geometric Carnelian specimen with 'vertebrae' form

Carnelian is a variety of the silicate mineral Chalcedony. Its rich red colour comes from the presence of iron oxide impurities. Polished, it is a lustrous semi-precious stone, most often used in jewellery, seals and small sculptures

The vertebrae-like structure of this carnelian is formed by the erosion of porous minerals adjacent to this harder chalcedony. Its triangulated geometric shaping, with spines that give it the name 'Agate vertebrae' is pronounced in this sizeable raw specimen.

Size: 90x90x70mm

Weight: 580g

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