Comprising large irregular chunks of mainly clear quartz. 1.56 kg total, 25-47 mm



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

With a cut window displaying dense acicular rutile inclusions. 344 grams, 10.4 cm



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

A large group of variously sized specimens showing characteristic striations. 683 grams total, 12-25 mm



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

A cut and polished section of fossilised tree. 1.26 kg, 11.5 cm

Fine condition.

From the Isle of Portland, Dorset, UK. Acquired 1950s-1960s. From an old Bristol paleontological collection.

At the base of the Purbeck Formation in Dorset is a layer of rock containing fossil trees that have now been silicified. The trees grew around a saline lagoon that occupied this area towards the end of the Jurassic period. The dominant tree was a large conifer that was adapted to living in what was then a climate of hot, arid summers and warm, wet winters. The growth rings in the wood indicate that a highly seasonal environment prevailed in Southern England during the late Jurassic period. The trees were drowned by the rising waters of the lagoon and many have been preserved in their original positions of growth. At this time Dorset was situated at the same latitude as present-day Malta.

A small nodule split in two halves exposing the vibrantly dyed red-coloured crystals. 175 grams total, 59-61 mm



From a Cambridgeshire, UK, collection.

A pair of polished Goniatite sp. specimens showing parts of the internal structure. 244 grams total, 76-79 mm



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

A large polished shell with openwork vines and tendrils, large central roundel with the Last Supper, and the smaller surrounding roundels showing scenes from the life of Jesus. 312 grams, 18.3 cm wide



Burwell collection, Cambridgeshire, UK.

A collection of various shells including a piece of pottery with marine encrustations, and a large shell with natural iridescence to the inner face. 1.25 kg total, 6.1-21 cm



Burwell collection, Cambridgeshire, UK.

Each with a cut and polished end showing cross-shaped inclusions of black graphite and carbon. 646 grams total, 27-55 mm



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

Comprising eight specimens showing intergrown golden crystals displaying characteristic striations. 505 grams total, 29-45 mm



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

Comprising: a cleaved octahedron fluorite crystal from Illinois, USA; citrine geode slice; quartz with pyrite(?); octahedral pyrite with serpentine; hexagonal yellow calcite in matrix; fire opal set in egg-shaped matrix; an unidentified mineral specimen with flower-like clusters of reddish brown crystals. 1.08 kg total, 36-99 mm



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

Paul A. Johnsgard - Oxford, 1988, hardback with dustwrapper, 264 pp, colour and monochrome. 1.43 kg, 28.5 x 22.5 cm



From the library of an East Anglian gentleman, 1970s-early 2000s.