Cluster of hopper crystals exhibiting a stairstep crystal structure and iridescent colours. 18.7 grams, 40 mm



From a Cambridgeshire, UK, collection.

An irregular specimen showing the internal structure. 283 grams, 81 mm



From a Cambridgeshire, UK, collection.

A boxed group of specimens comprising: two geode sections with amethyst, two pyrite specimens, one from Huanuco, Peru; a polished agate half showing 'fortress' type banding; a large smoky quartz crystal; two phantom amethyst crystal slices, one with an old label on the reverse; amazonite; sodalite; petrified wood; quartz, and others. 3.34 kg total including box, 4.2-12.5 cm



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

Each with one or two cut faces exposing the internal structure, some showing crystal formations. 3.22 kg total, 76-85 mm



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

Boxed group of irregular nuggets of pyrite showing metallic lustre. 5.99 kg total including box, 23-42 mm



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

Showing signs of being polished and with the tip cut at an angle, possibly used as a tool. 293 grams, 11.5 cm



Recovered from the Hawthorn Formation, Broad River, Beaufort County, South Carolina.

In graduating sizes and showing contrasting banding. 756 grams total, 9.7-13.9 cm



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

Two irregular slabs showing typical purple, blue and white banding. 907 grams total, 25.3-25.5 cm



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

Composed of small cylindrical beads and of seven coin-shaped feature beads; restrung. 38 grams, 32 cm



Ex London, UK, art market 1990s.

Comprising four matrix sections with dark purple amethyst crystals, and a large, cleaved fluorite octahedron; each supplied in a labelled specimen tray. 380 grams total, 58-66 mm



From Uruguay and Illinois, USA. Ex Mineral Imports, London, UK. Gregory, Bottley & Lloyd (Gregory's), Harwich, UK.

A rounded nodule half containing a fossil specimen. 1.15 kg, 12.5 cm



From Whitby, Yorkshire, UK. From a Cambridgeshire, UK, collection.

The specimen is close to Pseudolioceras lythense (Young and Bird).

Mainly comprising pale yellow hexagonal crystal sections, some showing red to brown colours. 1.01 kg total including box, 6-20 mm



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