Septarian egg, egg of septaria and yellow calcite of 534g

Septarian egg from Madagascar, an authentic stone egg of septaria and yellow calcite.

It weighs 534g and measures approximately 9cm high by 8cm wide.

Septaria is a type of calcareous concretion that forms in the sedimentary environment. These beautiful stones look like cracked spheres that are covered with internal fractures, giving them the appearance of a puzzle.