{"product_id":"large-septarian-nodule-custom-stand","title":"Large Septarian Nodule on Custom Stand","description":"\u003cp\u003e\u003cstrong\u003eSeptarian nodule on custom stand\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eLarge septarian nodule on a custom stand. A septaria nodule is a round or oval stone nodule with a network of natural cracks on the inside, later filled with minerals such as calcite, aragonite or barite.\u003c\/p\u003e\u003cp\u003eThey usually form in old sediment layers. First a hard concretion forms in soft mud around, for example, organic material or a chemical precipitation point. During further drying, shrinkage and geological changes, cracks form on the inside. Later mineral rich water flows through those cracks and fills them.\u003c\/p\u003e\u003cp\u003e30 to 35 million years old.\u003c\/p\u003e\u003cp\u003eDimensions: 48 H x 41 W x 15 D cm (septaria itself 43 H x 35 W cm)\u003c\/p\u003e","brand":"Rietveld Antiques","offers":[{"title":"Default Title","offer_id":54299919810888,"sku":"RA-31056","price":1195.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/4935\/9176\/files\/Photo-30-08-2026-20-00-37-scaled.jpg?v=1791930170","url":"https:\/\/rietveldantiques.com\/products\/large-septarian-nodule-custom-stand","provider":"Rietveld Antiques","version":"1.0","type":"link"}