{"product_id":"natural-belemnite-rostrum-fossils-x-2-12-kg-lot-from-madagascar","title":"Natural Belemnite Rostrum Fossils x 2.12 Kg Lot From Madagascar","description":"\u003cp\u003e\u003cstrong\u003e\u003cb\u003e\u003ci\u003eA NOTE FROM NICK\u003cbr\u003e\u003c\/i\u003e\u003c\/b\u003e\u003c\/strong\u003eA large flat of a 2.12 Kg lot of natural fluorescent Belemnite Rostrum fossils specimens. Around 400+ pieces.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003ePRODUCT DESCRIPTION \u003cbr\u003e\u003c\/b\u003e\u003cb\u003e\u003cstrong\u003e\u003cspan\u003eBelemnite Rostrum Fossil Specimens\u003c\/span\u003e\u003c\/strong\u003e\u003cbr\u003e\u003c\/b\u003eThe Belemnite Rostrum Fossil from Mahajanga, Madagascar, is a remnant of an extinct marine Cephalopod, known for its bullet-shaped, Calcite structure that formed part of its internal skeleton. Originating from the Jurassic to Cretaceous periods 66 - 200 million years ago, these fossils showcase a smooth or faintly striated surface, with concentric growth rings revealing a lifespan of about four years. Formed from low-Mg Calcite, the rostrum served as a counterbalance for the squid like creature’s buoyant phragmocone, aiding its agility in ancient oceans. Each fossil’s unique texture and earthy tones make it a great piece for collectors and a valuable tool for geologists or university's studying ancient marine environments.\u003c\/p\u003e\n\u003cp style=\"line-height: normal;\" class=\"MsoNormal\"\u003e\u003cb\u003ePRODUCT MINERALS \u003cbr\u003e\u003c\/b\u003eCalcite\u003cbr\u003e\u003c\/p\u003e\n\u003cp style=\"line-height: normal;\" class=\"MsoNormal\"\u003e\u003cb\u003ePRODUCT FEATURES \u003cbr\u003e\u003c\/b\u003eFossil, Bullet, Striated, Conical\u003cbr\u003e\u003c\/p\u003e\n\u003cp style=\"line-height: normal;\" class=\"MsoNormal\"\u003e\u003cb\u003ePRODUCT COLOUR \u003cbr\u003e\u003c\/b\u003eGrey, White, Brown\u003cbr\u003e\u003c\/p\u003e\n\u003cp style=\"line-height: normal;\" class=\"MsoNormal\"\u003e\u003cb\u003eMOHS HARDNESS SCALE\u003ci\u003e\u003cbr\u003e\u003c\/i\u003e\u003c\/b\u003e3 to 5\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003ePRODUCT DATA \u003cbr\u003e\u003c\/strong\u003eLocality = Maintiarano, Madagascar\u003cbr\u003eGrade = Good to A Grade\u003cbr\u003eSize = 23 - 61 mm \u003c\/p\u003e","brand":"FOSSIL - Rostrums \u0026 Shells","offers":[{"title":"Default Title","offer_id":50205670342849,"sku":"183-320-260512BM","price":2296.0,"currency_code":"ZAR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2066\/6451\/files\/183320_7.jpg?v=1778740620","url":"https:\/\/www.toprocks.com\/products\/natural-belemnite-rostrum-fossils-x-2-12-kg-lot-from-madagascar","provider":"Toprock Gemstones and Minerals ","version":"1.0","type":"link"}