{"product_id":"moroccan-sand-stromatolite-pseudo-stromatolite-desert-concretion-30-40g","title":"Moroccan Sand Stromatolite Pseudo-Stromatolite Desert Concretion 30-40g","description":"\u003cp\u003eA fascinating natural Moroccan pseudo-stromatolite sand concretion, weighing approximately 30–40g each.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eCommonly known within the mineral and fossil trade as a “Sand Stromatolite” or “Desert Onion”, these unusual Saharan formations are more accurately regarded as natural sandstone concretions rather than true fossil stromatolites.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eEach specimen is completely unique, with naturally formed concentric rings, raised centres and layered patterns creating striking circular and oval designs across the surface.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eThe pieces display warm terracotta, reddish-brown and sandy orange tones with a naturally rough, granular texture.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eDetails:\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e- Moroccan pseudo-stromatolite \/ sand concretion\u003c\/p\u003e\n\u003cp\u003e- Common trade name: Sand Stromatolite \/ Desert Onion\u003c\/p\u003e\n\u003cp\u003e- Natural, unpolished specimen\u003c\/p\u003e\n\u003cp\u003e- Approximate weight: 30–40g each\u003c\/p\u003e\n\u003cp\u003e- Concentric ring and layered formations\u003c\/p\u003e\n\u003cp\u003e- Warm terracotta \/ sandy orange colouring\u003c\/p\u003e\n\u003cp\u003e- Origin: Morocco\u003c\/p\u003e\n\u003cp\u003e- One specimen supplied\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003ePlease note\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eThis is a random selection listing, so the exact shape, colouring and pattern of the specimen received will vary.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eIf there is a particular specimen shown in the photographs that you especially like, please contact us before ordering and we will be happy to check whether it is still available.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eAs these are completely natural geological formations, variations in shape, colour, surface texture, small fissures, loose grains and natural weathering are to be expected.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"Clarke's Fusions","offers":[{"title":"Default Title","offer_id":47999185977475,"sku":null,"price":7.5,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0384\/0432\/5507\/files\/IMG_20260825_203526.jpg?v=1787780004","url":"https:\/\/clarkesfusions.co.uk\/products\/moroccan-sand-stromatolite-pseudo-stromatolite-desert-concretion-30-40g","provider":"Clarke's Fusions ","version":"1.0","type":"link"}