Ancient Art, Antiquities, Books, Natural History & Coins

Comprising four bags of mini geodes showing crystal-lined cavities. 3.28 kg total, 17-50 mm



From Brazil. Ex Mineral Imports, London, UK. Gregory, Bottley & Lloyd (Gregory's), Harwich, UK.

Irregular geode matrix with light purple amethyst crystals; the metal branches tipped with polished light-coloured carnelian and agate pebbles. 373 grams, 16 cm



From Brazil. Ex Mineral Imports, London, UK. Gregory, Bottley & Lloyd (Gregory's), Harwich, UK.

Comprising ten cut and polished halves, each showing a crystal-lined cavity. 1.23 kg total, 60-77 mm



From Brazil. Ex Mineral Imports, London, UK. Gregory, Bottley & Lloyd (Gregory's), Harwich, UK.

A nickel-iron meteorite (IAB). 97.8 grams, 50.7 mm



From a 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 199,0 it became protected by law.

A group of ten optical calcite specimens, each held in a white card collector's tray. 170 grams total, 18-22 mm

Very fine condition.

Durango, Mexico. Mineral Imports, London, UK. Gregory, Bottley & Lloyd (Gregory's).

A boxed group of sand roses with flattened crystals on the c-axis, fanning open in variously shaped radiating clusters. 3.54 kg total including box, 18-59 mm



Ex Mineral Imports, London, UK. Gregory, Bottley & Lloyd (Gregory's), Harwich, UK.

Three irregular matrices containing dawn redwood fossils, showing twig and needle leaves. 88.1 grams total, 46-55 mm



From a Cambridgeshire, UK, collection.

A Carcharocles megalodon shark tooth, with serrations and polished tooth enamel. 154 grams, 11.1 cm



From a Cambridgeshire, UK, collection.

Carcharodon megalodon is regarded as one of the largest and most powerful marine predators in vertebrate history and likely had a profound impact on the structuring of the marine communities. Fossil remains indicate that this giant shark reached a length of more than 16 metres (52 ft) and also affirm that it had a cosmopolitan distribution. Scientists suggest that in life it looked like a stockier version of the great white shark, Carcharodon carcharias.

Comprising three specimens with polished cut faces, showing strong banding and crystal-lined interior. 2.12 kg total including box, 9.2-16 cm



From Malawi. Ex Mineral Imports, London, UK. Gregory, Bottley & Lloyd (Gregory's), Harwich, UK.

Comprising six polished slices in gently graduated sizes, cut from the same geode. 372 grams total, 8.8-10.2 cm



Ex Mineral Imports, London, UK. Gregory, Bottley & Lloyd (Gregory's), Harwich, UK.

Boxed group of amethyst crystals on matrices exhibiting vibrant purple colour. 3.45 kg total including box, 22-56 mm



From Brazil. Ex Mineral Imports, London, UK. Gregory, Bottley & Lloyd (Gregory's), Harwich, UK.

Comprising two Libellula doris larvae on an oval matrix; supplied in a glazed display case with an information ticket. 13.4 grams, 90 mm



From a Cambridgeshire, UK, collection.