Comprising an Otodus obliquus tooth made into a pendant and suspended from a cord necklace; supplied in a gift box. 7.63 grams, tooth: 29 mm



From a Cambridgeshire, UK, collection.

A thick cut section showing red, brown and grey colours, some bark detailing to the outer edges. 1.56 kg, 30.8 cm



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

Restrung using recently polished Mammuthus primigenius bone beads. 188 grams, 61 cm



Ex West country, UK, collection, 2000s.

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 couldn't get to.

Comprising two Aegasteroceras sagittarium sections with a polished face. 326 grams total, 9-11.8 cm



From Scunthorpe. From a Lincolnshire, UK, collection.

Chocolate-brown matrix with vibrant opal inclusions, collection number 411. 47.4 grams, 43 mm



Acquired on the UK mineral and fossil market, since 1970. From the historic mineral collection of Richard Valentine Cain, London, UK, thence by descent. Accompanied by an original historic index file card.

A trio of freestanding geode terminals, each with two cut faces. 1.4 kg total, 10.8-14.1 cm



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

Two portions of bone, possibly an astragalus; abraded. 2.06 kg total, 14.8-15.5 cm



Found Walton-on-the-Naze beach, Essex, UK, circa 2006.

Comprising two vertebrae retaining the majority of the body of the vertebra. 1.07 kg total, 96-97 mm



From Germany. From a Cambridgeshire, UK, collection.

Comprising large irregular chunks. 1.18 kg total, 34-43 mm



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

On an amethyst geode matrix; the metal branches tipped with polished citrine pebbles. 643 grams, 19 cm



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

An irregular slice of dark green jasper with red veins, one polished face. 544 grams, 20.2 cm



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

An irregular slab of light pink crystals with dusting of marcasite. 1.05 kg, 13.6 cm



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