Septarian HeartSeptarian is a distinctive stone formed during the Cretaceous Period, approximately 5070 million years ago. Its name comes from the Latin word septum, meaning partition, referencing the natural crack patterns that create its striking appearance. Septarian is composed of Calcite (the yellow sections), Aragonite (the brown lines), and Limestone (the grey areas), giving each piece its unique, earthy formation. In crystal traditions, Septarian is