Comprising four vertebrae with remains of processes, on a sandstone matrix wrapped in a plaster field jacket. 5.32 kg, 36.5 cm



From a Cambridgeshire, UK, collection.

Diplomystus sp. fossil fish on a matrix slab showing good detail to the spine and ribs. 3.7 kg, 27.5 cm



From Wyoming, USA. From a Lincolnshire, UK, collection.

A cut section with two polished faces showing the attractive banding within the trunk. 409 grams, 13.6 cm



From Madagascar. From a Lincolnshire, UK, collection.

Each displaying dramatic colourful banding on the cut face. 2.15 kg total, 12.8-14.4 cm



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

Ten smooth pieces showing dark banding, four with a cut base. 120 grams total, 20-31 mm



From Democratic Republic of the Congo, Central Africa. Ex Mineral Imports, London, UK. Gregory, Bottley & Lloyd (Gregory's), Harwich, UK.

Each having formed a circular array of flat crystals. 452 grams total, 14-27 mm



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

Comprising three large white calcite rhomboids on a rusty red matrix with dusting of smaller crystals. 242 grams, 96 mm



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

Comprising six geode sections with clusters of purple amethyst crystals, one with clear quartz crystals. 1.03 kg total, 7.8-11.6 cm



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

Comprising three cut geode sections with richly coloured amethyst crystals. 1.84 kg total, 11.2-13 cm



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

Comprising five polished shapes showing the internal structure of the head. 123 grams total, 33-36 mm



From a Cambridgeshire, UK, collection.

Restrung with mainly facetted biconical beads with one cornerless cube bead. 166 grams, 60 cm



Ex London, UK, gentleman, 2000s.

Comprising three large slices displaying mainly red, grey and brown banding. 855 grams total, 18.2 - 20.7 cm



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