Polished Septarian Spheres x 4 From Mahajanga, Madagascar POLISHED / NATURAL sometimes adorned with delicate black

sometimes adorned with delicate black Chromite specks

Size = 113 - 162 mm | 4

Featuring vibrant ruby corundum embedded within a striking green Chrome Verdite matrix

Size = 69 - 121 mm | 2

The sheer contrasts of colour which characterises this material make them very attractive

Polished Septarian Spheres x 4 From Mahajanga, Madagascar POLISHED / NATURAL sometimes adorned with delicate blackPRODUCT INFORMATION General Description Septarian Nodule, affectionately known as Dragon Eggs, is a tri color concretion comprised of Aragonite (brown), Calcite (yellow), and Limestone (grey). The name "Septarian" originates from the word "Septaria," typically associated with concretions that exhibit internal cavities or cracks. This extraordinary mineral traces its origins back 50 to 70 million years ago, during Earth's Cretaceous Period, in a