Genuine septarian fossil: Offers authentic mineral composition and historical significance
Cubed and flat-backed: Enhances display and preservation for collectors
Rare occurrence: Sourced from ancient ocean floors, making each specimen unique
Scientifically significant: Provides insight into ancient marine environments and fossil formation
Summarized by Shop
These unusual carved rock formations are called septarian. Septarian is a mud concretion which formed on an ancient sea bed or floor. In very rare instances fossil remains of various ocean floor dwellers may be found inside the septarian. Theories vary as to what caused crystals to form inside. Scientists do agree that the process of form
Age
Approximately 50 to 70 million years old
Mineral composition
Yellow calcite, brown aragonite, white or clear barite, grey limestone