A septarian nodule is a relatively small, rounded rock formation that features distinctive internal cracking and mineral infill. A septarian nodule is a type of concretion—basically, a hard, compact mass of mineral matter that forms in sedimentary rock. Septarian nodules are especially valued for their unique appearance, which includes a network of cracks (called septaria) filled with secondary minerals. Key Characteristics of a Septarian Nodule: Feature Description Composition Typically includes calcite (yellow), aragonite (brown), and a matrix of limestone or clay (gray or tan). Septaria (Cracks) The internal cracks usually form a radiating pattern. These are later filled with minerals, often giving a web-like or lightning- strike appearance. Age Often 50 to 70 million years old (from the Cretaceous period). Formation Process Formed from volcanic activity and subsequent sedimentation. Gas pockets inside the mud balls dried out and cracked, then were filled with minerals over time. Location Found Commonly found in Utah (USA), Madagascar, Morocco, and England. Uses & Value Decorative Stone: Polished septarian nodules are popular in jewelry, home décor, and as collector's items. Metaphysical Properties (not scientifically supported): Believed by some to aid in grounding, communication, and emotional healing. Educational Specimens: Used in geology classes to demonstrate concretion and mineral deposition processes. Size : 2 Inch Weight : 400 to 450 gm Note: Due to the unique nature of each fossil, your item may vary slightly from the picture shown. All items are randomly and intuitively chosen. All items are cleansed with white sage before being shipped. *All crystal healing information provided is intended for spiritual guidance. It is not intended as a substitute for medical advice or service.
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