![Spinosaurus Dinosaur Fossil Tooth: Cretaceous Period, circa 125-113 million years B.P. Showing some good enamel and root; restored. 41 grams, 84 mm (3 1/4 in.). [No Reserve] From Morocco, North Africa. From a Lincolnshire, UK, collecti](https://p1.liveauctioneers.com/1191/405225/225127644_1_x.jpg?height=280&quality=70&sharpen=true&version=1769779778&width=280)
Est. £40-£60
Results for “Fossils and Minerals”
Est. $334-$401
Est. $30-$60
Est. $150-$250
Est. $40-$80
Est. $300-$400
Est. $550-$700
$220
![Large Cut and Polished Slab of Vintage Blue John: Two irregular slabs showing typical banding. 388 grams total, 17.7-23.5 cm (7 - 9 1/4 in.). [2, No Reserve] From Castleton, England. Ex Mineral Imports, London, UK. Gregory, Bottley & Lloyd (Gregory's](https://p1.liveauctioneers.com/1191/405225/225127655_1_x.jpg?height=280&quality=70&sharpen=true&version=1769779778&width=280)
Est. £20-£30
Est. $175-$300
Est. $200-$300
Est. $200-$300
![Fossil Knightia Fish Pair: Eocene Period, circa 158-36 million years B.P. Comprising two rectangular matrices, each with a Knightia alta specimen. 170 grams total, 82-90 mm (3 1/4 - 3 1/2 in.). [2, No Reserve] From Wyoming, USA](https://p1.liveauctioneers.com/1191/405225/225127586_1_x.jpg?height=280&quality=70&sharpen=true&version=1769779778&width=280)
Est. £30-£40
Est. $100-$250
Est. $50-$80
Est. £60-£80
Est. $400-$500
![Large Fossil Perisphinctes Ammonite: Jurassic Period, circa 174-145 million years B.P. Perisphinctids indogermanus fossil ammonite showing clear ribbing. 867 grams, 14 cm (5 1/2 in.). [No Reserve] From Madagascar. From a Lincolnshire, UK](https://p1.liveauctioneers.com/1191/405225/225127603_1_x.jpg?height=280&quality=70&sharpen=true&version=1769779778&width=280)
Est. £80-£100
Est. $300-$400
Est. $75-$90
Est. $300-$400
![Cave Bear Fossil Upper Jaw Section: Pleistocene Period, circa 30,000 B.P. Upper mandible of the cave bear Ursus spelaeus with two large molar teeth in place. 128 grams, 18.5 cm (7 1/4 in.). [No Reserve] Acquired on the UK art market. Fr](https://p1.liveauctioneers.com/1191/405225/225127595_1_x.jpg?height=280&quality=70&sharpen=true&version=1769779778&width=280)
Est. £80-£100
Est. $300-$400
![Hollow Glass Tektite 'Cave' From Meteorite Crater: Conical formation with flat base and a circular opening to one side, hollow cavity inside. 45.9 grams, 48 mm (1 1/8 in.). [No Reserve] UK gallery, early 2000s. TimeLine Auctions follows a rigorous vet](https://p1.liveauctioneers.com/1191/405225/225127613_1_x.jpg?height=280&quality=70&sharpen=true&version=1769779778&width=280)
Est. £30-£40
Est. $450-$550
$170
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