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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)
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Magenta 'Smiling Cyclops' Agate Slice
Estimate: £40 - 60 (+bp*)
Opening Bid: £5
Polished and dyed slice with fanciful facial detailing, viewable from both sides. 65 grams, 97 mm
From Brazil. Property of a Bristol, UK, gentleman collector. -
North Sea Fossil Bison Vertebra
Devensian, 110,000-12,000 years B.P.Estimate: £30 - 40 (+bp*)
Opening Bid: £5
Comprising the body, neural canal and the arch of the vertebra, with the majority of the processes. 460 grams, 12 cm
From a Cambridgeshire, UK, collection. -
Campo Del Cielo Meteorite Fragment
Fell 6000-5000 years B.P.Estimate: £50 - 70 (+bp*)
Opening Bid: £5
A nickel-iron meteorite (IAB). 7.3 grams, 22 mm
Ex Cambridgeshire, UK, collection.
A crater field of roughly 26 craters was found in the vicinity of this crater, which is estimated to date to 4-5 thousand years BP. The age of the meteorite itself is thought to be c.4.5 billion years, formed as part of the development of this solar system. The largest two fragments, the 30.8-ton Gancedo and 28.8-ton El Chaco, are among the heaviest meteorite masses ever recovered on Earth. In 1576, the governor of a province in Northern Argentina commissioned the military to search for a large mass of iron, which it was believed the local people claimed had fallen from the sky and which they used for their weapon production. The expedition discovered a large mass of metal, which was assumed to be an iron mine, and brought back a few samples, which were described as being of unusual purity. Following the legends, in 1774, Don Bartolomé Francisco de Maguna rediscovered the iron mass. He himself did not believe that the stone had fallen from the sky and assumed that it had formed by a volcanic eruption. However, he sent the samples to the Royal Society of London. In 1990, it became protected by law.
