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LOT 3220
Tiger Iron Mineral Rock Display Slice
CIRCA 2.2 BILLION YEARS B.P.
8 x 6 in. (875 grams, 20.5 x 15.2 cm).
Polished slab showing contrasting banding in various shades of brown. [No Reserve]
ProvenanceFrom Western Australia.
Property of a Bristol, UK, gentleman collector.
Tiger iron is a 1.8- to 2.5-billion-year-old metamorphic rock composed of alternating bands of hematite, red jasper, and golden tiger's eye, closely linked in origin to ancient photosynthetic cyanobacteria. Early fossil algae helped create the oxygen-rich atmosphere that eventually allowed life on Earth to flourish.
CONDITIONTimeLine Auctions follows a vetting process to ensure the authenticity and legality of all items, reinforcing our commitment to integrity and responsible trading. Each antiquity, antique, and coin lot undergoes thorough examination by a vetting committee of at least ten external specialists, professional trade association members, scientists, and archaeologists: Our Vetting Process
AUCTIONS:
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LOT 3220
Tiger Iron Mineral Rock Display Slice
Estimate £30 - 40€35 - 46 (for guidance only)$41 - 54 (for guidance only)
Opening Bid
£5 (EUR 6; USD 7) +BP*
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Large Polished Fossilised Coral Head Heart
Devonian Period, circa 417-354 million years B.P.Estimate: £20 - 30 (+bp*)
Opening Bid: £5
Cut and polished heart-shaped coral head showing the internal structure of the polyps. 124 grams, 72 mm
From a Cambridgeshire, UK, collection. -
Liopleurodon Apex Marine Predator Fossil Vertebra
Middle Jurassic Period, circa 160 million years B.P.Estimate: £300 - 400 (+bp*)
Opening Bid: £150
The vertebra with concave depressions on both faces, two pairs of small processes on the outer face and a pair of ventrolateral crests. 1.16 kg, 14.1 cm wide
From Farringdon Clay, Oxfordshire, UK. Property of a Bristol, UK, gentleman collector.
Liopleurodon is an extinct genus of pliosaurid plesiosaurs that could reach over 8 meters in length. It had two pairs of flippers, a short neck and a long head. Various studies have shown it to have been an ambush predator that fed on cephalopods, marine reptiles and fish. -
Spinosaurus Dinosaur Fossil Bone Fragment Collection
Cretaceous Period, circa 125-113 million years B.P.Estimate: £20 - 30 (+bp*)
Opening Bid: £5
Comprising eight differently sized bone fragments from different bone structures. 116 grams total, 25-63 mm
Acquired on the UK art market. Property of an Essex, UK, gentleman.
The Spinosaurus was both a beachcomber-type scavenger and an active hunter, taking small stranded Plesiosaurs, Pterosaurs, turtles and large fish; adults weighed up to 21 tonnes and grew up to 18 meters long.
