A Carcharodontosaurus saharicus dinosaur tooth; repaired. 6.19 grams, 42 mm



From Atlas Mountains, Morocco, North Africa. From a Cambridgeshire, UK, collection.

A cut end section with two polished ends of Dar al Gani 412 CK5 carbonaceous chondrite, inked collector's note 'DAG 412' to one side. specimen weight 26 grams, 27 mm



From Al Jufrah, Libya. Ex The Meteorite Market, Alaska, USA. Ex USA collection. From a Leicestershire, UK, collection. Accompanied by an original dealer label and aluminium identification label.

A large irregular specimen in light pink colour. 3.58 kg, 17 cm



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

Restrung using recently polished Mammuthus primigenius bone beads. 191 grams, 56 cm



Ex West country, UK, collection, 1990s onwards.

The mammoth lineage branched from the Asian elephant around 6 million years ago, and later on the Woolly Mammoth, Mammuthus primigenius, evolved in eastern Siberia. Woolly mammoths, being slightly smaller than living African elephants, were foragers and ate grass, as well as small, nutritious flowering plants that flourished in the environment where they lived. They may also have used their curved tusks to dig through snow and eat plants that other foragers were unable to reach.

Comprising over seventy teeth. 52 grams total, 15-28 mm



From a Norfolk, UK, collection.

Comprising two cut and polished slices showing intricate brown and red banding with some crystal cavities. 2.14 kg total, 22.5 cm each



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

Hollardops mesacristata on a matrix. 295 grams, 85 mm



From a Cambridgeshire, UK, collection.

Comprising fifty sections of petrified wood showing some bark details. 1.08 kg total, 25-59 mm



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

The aquatic arthropod showing good detail to the carapace, resting on an irregular matrix. 120 grams, 72 mm



From Morocco, North Africa. From a Cambridgeshire, UK, collection.

Freestanding and polished to reveal internal structures. 1.61 kg, 19.5 cm



From Atlas Mountains, Morocco, North Africa. From a Cambridgeshire, UK, collection.

Comprising an Otodus obliquus tooth made into a pendant and suspended from a cord necklace; supplied in a gift box. 8.6 grams total, tooth: 31 mm



From a Lincolnshire, UK, collection.

Comprising one hundred geode sections with vibrant prismatic amethyst crystals. 2.33 kg total, 23-72 mm



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