{"product_id":"wyoming-turritella-shell-fossil-slab-140g","title":"Wyoming Turritella Shell Fossil Slab in Matrix | 140 g | One of One","description":"\u003ch2\u003eAncient shell mosaic\u003c\/h2\u003e\u003cp\u003eA one-of-one Wyoming shell fossil slab with a dense field of spiral shell cross-sections preserved through a dark blue-grey mineral matrix. Commonly marketed in the lapidary trade as ‘Turritella agate’, this material is more accurately described as fossiliferous silica or chalcedony containing fossil freshwater gastropods; the trade name comes from the shells’ tall spiral forms.\u003c\/p\u003e\u003cp\u003eThe supplied note records Wyoming, USA. This style of fossil material is often associated with Eocene lake deposits of the Green River Formation, but the exact formation, locality and species for this specimen have not been supplied. The listing therefore presents it as a collector specimen with the provenance stated on the note, rather than as a laboratory-certified scientific identification.\u003c\/p\u003e\u003cp\u003eThe cut face reveals dozens of cream, tan and pale shell forms set against a charcoal-to-blue-grey matrix. Natural irregular edges and the rough reverse side keep the piece tactile and geological. At 140 g, it makes a striking display piece for a shelf, cabinet, desk or natural-history collection.\u003c\/p\u003e\u003ch3\u003eSpecimen details\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCommon trade name:\u003c\/strong\u003e Turritella shell fossil \/ ‘Turritella agate’\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFossil material:\u003c\/strong\u003e Spiral freshwater gastropods preserved in mineralized matrix\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOrigin:\u003c\/strong\u003e Wyoming, USA (as marked on the supplied note)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGeological age:\u003c\/strong\u003e Not specified for this specimen; similar Wyoming material is commonly associated with Eocene lake deposits\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eColour:\u003c\/strong\u003e Charcoal and blue-grey matrix with cream, tan and pale shell outlines\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFinish:\u003c\/strong\u003e Cut display slab with natural rough edges; exact condition shown in the photographs\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 140 g\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAvailability:\u003c\/strong\u003e One of one — quantity 1\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eCare\u003c\/h3\u003e\u003cp\u003eHandle gently and display on a stable surface. Avoid drops, hard knocks, prolonged soaking and harsh chemicals; the natural edges and matrix can chip. Please examine all photographs carefully for the specimen’s exact surface, edges and reverse.\u003c\/p\u003e\u003cp\u003eThe backgrounds are styled editorial composites for presentation. The exact fossil slab shown is the piece supplied; no wood sculpture, acrylic stand or stone prop is included.\u003c\/p\u003e","brand":"Deep Time Atelier","offers":[{"title":"Default Title","offer_id":49134286340321,"sku":"DTA-TURRITELLA-20260916-001","price":59.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0841\/7892\/7841\/files\/03-turritella-slab-detail.png?v=1789550978","url":"https:\/\/deeptimeatelier.com\/products\/wyoming-turritella-shell-fossil-slab-140g","provider":"Deep Time Atelier","version":"1.0","type":"link"}