Natural History - Polished Fossil Cleoniceras Ammonite

Comprising a section of nickel-iron meteorite (IAB) set with a suspension loop and suspended from a cord necklace; supplied in a gift box. 27 grams total, meteorite: 30 mm



From a Lincolnshire, UK, collection. Property of a Cambridgeshire, UK, gentleman.

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.

Comprising a large group of attractive seashells in a variety of colours and types. 625 grams total, 0.8-16.2 cm



Acquired from various sources within the UK. Ian Wilkinson collection, Nottinghamshire, UK, formed since 1985.

From the left side of Ursus spelaeuslower jaw, displaying a canine (repaired) and three molars. 312 grams, 20.3 cm



From the private collection of a London gentleman formed since 2003.

The cave bear was a prehistoric species of bear that lived in Europe and Asia, and became extinct about 24,000 years ago during the Last Glacial Maximum.