{"title":"Ammonite Shells \u0026 Displays","description":"\u003cp\u003eFull ammonite shells, mounted display pieces and ammolite slabs from Southern Alberta. Each piece is one of a kind and ready to display. Looking for just the mounted pieces? \u003ca href=\"\/collections\/ammonite-shells-and-displays\/display\"\u003eSee displays\u003c\/a\u003e.\u003c\/p\u003e","products":[{"product_id":"full-interclare-ammonite-shell-cgss1","title":"Full Interclare Ammonite Shell - CGSS1","description":"\u003cp\u003eFull \u003cem\u003ePlacenticeras intercalare\u003c\/em\u003e ammonite shell from the Bearpaw Formation of Southern Alberta. Red, orange, pink and green ammolite covers much of the shell, set off by its natural rock matrix around the centre and edges.\u003c\/p\u003e\u003cp\u003eOne of a kind.\u003c\/p\u003e","brand":"Coulee Gems","offers":[{"title":"Default Title","offer_id":53968239821013,"sku":"CGSS1","price":6400.0,"currency_code":"CAD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0745\/1269\/5509\/files\/5f6e246e-4697-4c03-947d-6d3b7f5a910d.png?v=1780264918"},{"product_id":"ammolite-negative-cap-display-cgss2","title":"Ammolite Negative Cap Display - CGSS2","description":"\u003cp\u003eHand-sized negative cap display piece from the Bearpaw Formation of Southern Alberta. Bright green and gold fill the centre of the face, with orange and red toward the edges, on a thick natural matrix base.\u003c\/p\u003e\u003cp\u003eNegative cap is the ammolite layer that stayed attached to the rock around the shell instead of the shell itself, showing the colour from the inside of the shell.\u003c\/p\u003e\u003cp\u003eOne of a kind.\u003c\/p\u003e","brand":"Coulee Gems","offers":[{"title":"Default Title","offer_id":53968240181461,"sku":"CGSS2","price":560.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0745\/1269\/5509\/files\/0702cecb-546f-4cbb-a20d-4ad1d5e208a6.png?v=1780265024"},{"product_id":"full-ammonite-shell-mosasaur-bitemarks-cgss3","title":"Full Ammonite Shell, Mosasaur Bitemarks - CGSS3","description":"\u003cp\u003eFull ammonite shell from the Bearpaw Formation of Southern Alberta, with deep blue, teal, green and purple across the shell and red and orange on the outer whorl.\u003c\/p\u003e\u003cp\u003eThe shell carries bite marks from a mosasaur, a large marine reptile that hunted ammonites in the same ancient sea. Specimens that record an attack like this are a real piece of prehistoric history.\u003c\/p\u003e\u003cp\u003eOne of a kind.\u003c\/p\u003e","brand":"Coulee Gems","offers":[{"title":"Default Title","offer_id":53968252502229,"sku":"CGSS3","price":6800.0,"currency_code":"CAD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0745\/1269\/5509\/files\/80bc236e-9bad-4f04-9dd3-3ef689d38a5d.png?v=1780265691"},{"product_id":"placenticeras-intercalare-specimen-display","title":"Placenticeras intercalare Specimen Display - CGSS10","description":"\u003cp\u003e\u003cspan\u003eBeautiful double-sided 4½\" × 5½\" Placenticeras intercalare display specimen available for sale. This exceptional piece displays a full spectrum of vibrant color on both sides and retains the species’ distinctive horns. Stabilized, hand-polished, and finished with a durable 2K for long-term protection\u003c\/span\u003e\u003c\/p\u003e","brand":"Coulee Gems","offers":[{"title":"Default Title","offer_id":54605320290517,"sku":"CGSS10","price":2700.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0745\/1269\/5509\/files\/20260815_143030.webp?v=1787504714"},{"product_id":"placenticeras-costatum-display-cgss11","title":"Placenticeras Costatum Display - CGSS11","description":"\u003cp\u003eA large, double-sided outer whorl of \u003cem\u003ePlacenticeras costatum\u003c\/em\u003e from the Bearpaw Formation of Southern Alberta. Its unusual elongated form almost gives it the look of a baculite, which makes it a particularly distinctive display piece.\u003c\/p\u003e\u003cp\u003eThe fossil is covered in gem-grade Blue Zone ammolite with a vivid rainbow of green, blue, gold, orange and red. It has been professionally restored and stabilized, then finished with a durable 2K clear coat to help protect the ammolite from UV exposure, scratches and handling.\u003c\/p\u003e\u003cp\u003eOne of a kind.\u003c\/p\u003e","brand":"Coulee Gems","offers":[{"title":"Default Title","offer_id":54625658536149,"sku":"CGSS11","price":12000.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0745\/1269\/5509\/files\/20260825_132500.webp?v=1787690458"},{"product_id":"full-ammonite-shell-cgss5","title":"Full Ammonite Shell - CGSS5","description":"\u003cp\u003eComplete ammonite shell from the Bearpaw Formation of Southern Alberta, with the full coil intact.\u003c\/p\u003e\u003cp\u003eThe outer shell has a dark grey, lace-like pattern across its surface, with small patches of orange and red near the centre of the coil. A natural, unpolished display piece.\u003c\/p\u003e","brand":"Coulee Gems","offers":[{"title":"Default Title","offer_id":67974388711637,"sku":"CGSS5","price":5000.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0745\/1269\/5509\/files\/4613ca2c-5a23-46ff-b449-333b3d8fe8d5.png?v=1792899139"},{"product_id":"multi-layered-ammolite-specimen-cgss6","title":"Multi-Layered Ammolite Specimen with Dendritic Pattern - CGSS6","description":"\u003cp\u003eA thick piece of ammolite with several layers of colour stacked on top of each other, from the Bearpaw Formation of Southern Alberta. Bright green, gold, orange and red run across the face in large plates, with deep red patches and a dark shale base. You can see the separate layers along the edges.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDendritic pattern.\u003c\/strong\u003e This piece also shows dendrites: fern-like, branching patterns made of mineral, usually manganese or iron oxide. They form when mineral-rich water seeps into tiny cracks in the stone long after it was buried. As that water meets oxygen, the minerals come out of it and build up in branching, tree-like shapes. Dendrites look like fossil plants, but they are purely mineral.\u003c\/p\u003e\u003cp\u003eMulti-layered ammolite is already less common than single-layer material. Finding dendrites in the same piece is unusual, which makes this a distinctive collector's specimen.\u003c\/p\u003e","brand":"Coulee Gems","offers":[{"title":"Default Title","offer_id":67974390579413,"sku":"CGSS6","price":900.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0745\/1269\/5509\/files\/e654abb4-7685-4519-90cd-84b2c00453bd.png?v=1792899172"},{"product_id":"ammolite-negative-cap-slab-cgss7","title":"Ammolite Negative Cap Slab - CGSS7","description":"\u003cp\u003eFlat slab of ammolite negative cap, from the Bearpaw Formation of Southern Alberta. Deep red and pink cover the centre in a fine crackle pattern, ringed by a band of orange, yellow and green around the edge, all on dark natural shale.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is negative cap?\u003c\/strong\u003e When an ammonite shell split from the rock around it, part of the ammolite layer sometimes stayed stuck to the rock instead of the shell. That piece is called negative cap: genuine ammolite on its natural shale, showing the colour from the inside of the shell.\u003c\/p\u003e\u003cp\u003eThis slab is one half of a matching pair. Its partner is listed as CGSS8.\u003c\/p\u003e","brand":"Coulee Gems","offers":[{"title":"Default Title","offer_id":67974392381653,"sku":"CGSS7","price":280.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0745\/1269\/5509\/files\/82454097-1e7c-4979-ba23-d9ff4aab6417.png?v=1792899204"},{"product_id":"ammolite-negative-cap-slab-cgss8","title":"Ammolite Negative Cap Slab - CGSS8","description":"\u003cp\u003eFlat slab of ammolite negative cap, from the Bearpaw Formation of Southern Alberta. Red and pink run through the centre in a fine crackle pattern, with orange, yellow and green around the edge, all on dark natural shale.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is negative cap?\u003c\/strong\u003e When an ammonite shell split from the rock around it, part of the ammolite layer sometimes stayed stuck to the rock instead of the shell. That piece is called negative cap: genuine ammolite on its natural shale, showing the colour from the inside of the shell.\u003c\/p\u003e\u003cp\u003eThis slab is one half of a matching pair. Its partner is listed as CGSS7.\u003c\/p\u003e","brand":"Coulee Gems","offers":[{"title":"Default Title","offer_id":67974394314965,"sku":"CGSS8","price":260.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0745\/1269\/5509\/files\/a8532dce-60a8-4ceb-ae4c-1e5cd5b76018_1ae31638-b617-4590-ace2-3765bc376863.png?v=1792899232"},{"product_id":"full-rainbow-corner-negative-cap-cgss9","title":"Large Rainbow Corner Negative Cap - CGSS9","description":"\u003cp\u003eLarge corner piece of ammolite negative cap showing the full rainbow, from the Bearpaw Formation of Southern Alberta. Red and orange run along the top and left side, bright green and teal fill the middle, and blue and purple come in toward the bottom right, all in a fine crackle pattern on dark shale.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is negative cap?\u003c\/strong\u003e When an ammonite shell split from the rock around it, part of the ammolite layer sometimes stayed stuck to the rock instead of the shell. That piece is called negative cap: genuine ammolite on its natural shale, showing the colour from the inside of the shell.\u003c\/p\u003e","brand":"Coulee Gems","offers":[{"title":"Default Title","offer_id":67974441763029,"sku":"CGSS9","price":800.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0745\/1269\/5509\/files\/00137f8d-82c8-4272-84ef-802ac04527dd.png?v=1792899383"},{"product_id":"full-ammonite-shell-cgss12","title":"Full Ammonite Shell - CGSS12","description":"\u003cp\u003eFull ammonite shell from the Bearpaw Formation of Southern Alberta. Red, pink and purple ammolite covers the inner coils, and the outer whorl lights up with bright green and teal. The natural suture patterns and a few matrix patches show across the shell, giving it a lot of character.\u003c\/p\u003e\u003cp\u003ePhotographed on a display stand.\u003c\/p\u003e\u003cp\u003eOne of a kind.\u003c\/p\u003e","brand":"Coulee Gems","offers":[{"title":"Default Title","offer_id":67974706430165,"sku":"CGSS12","price":7000.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0745\/1269\/5509\/files\/20260901_183653.webp?v=1792902178"}],"url":"https:\/\/couleegems.com\/collections\/ammonite-shells-and-displays\/display.oembed","provider":"Coulee Gems","version":"1.0","type":"link"}