Comprising mainly twinned and intergrown prismatic crystals. 1.27 kg total, 28-42 mm



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

Comprising two Elrathia kingii specimens on matrices. 470 grams total, 10.5-11.3 cm



From a Lincolnshire, UK, collection.

With thick agate borders and an interior window revealing pink druzy coating over nascent stalactites; mounted on a custom-made display stand. 2.88 kg, 17.5 x 17 x 8 cm, 24 cm including stand



From Artigas, Uruguay. Property of a London lady.

Polished section of a geode lined with large, deep purple amethyst crystals in flower-like formations; mounted on a custom-made display stand. 10.65 kg, 26 x 22 x 10 cm, 32 cm including stand



From Artigas, Uruguay. Property of a London lady.

Euomphaloceras cunningtoni with prominent protrusions on all outer ribs, old inked collector's notes '209' and 'Euomphaloceras Cunningtoni ?'. 830 grams, 13 cm



From the private collection of Kenneth Machin (1936-2020), Buckinghamshire, UK; his collection of antiquities and natural history was formed since 1948; thence by descent.

On a rectangular matrix, showing good spine and tail detail. 469 grams, 18 cm



From Green River formation, Wyoming, USA. From the private collection of Kenneth Machin (1936-2020), Buckinghamshire, UK; his collection of antiquities and natural history was formed since 1948; thence by descent.

Large jaw fragment set with two teeth, with another two showing within the jaw. 582 grams, 16.1 cm



From a Cambridgeshire, UK, collection.

The Mosasaur is an extinct, large marine reptile dinosaur with an elongated body, long snout and paddle-like limbs. Found worldwide, they competed with other well-known sea predators of the Late Cretaceous, such as plesiosaurs and ichthyosaurs, for food, existing primarily on a diet of ammonoids, cuttlefish and fish.

On a rectangular matrix showing the characteristic oval body and a small head. 1.03 kg, 16 cm



From Green River formation, Wyoming, USA. From the private collection of Kenneth Machin (1936-2020), Buckinghamshire, UK; his collection of antiquities and natural history was formed since 1948; thence by descent.

Boxed group of fifteen royal blue sodalite specimens with white calcite veins. 3.6 kg total, 7.5-10.1 cm



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

Rectangular matrix with a single Diplomystus birdi specimen. 226 grams, 10.3 cm



From Lebanon. From a Cambridgeshire, UK, collection.

Unpolished botryoidal specimen showing characteristic banding on the sides. 3.37 kg, 19 cm



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

Comprising: quartz from Rostowrack China Clay Pit, Cornwall; smoky quartz from Virginia Pit, St Stephen, Cornwall; chalcopyrite from Mount Wellington Mine, Twelveheads, Cornwall; rhodonite from Greystone Wood Mine, Lawhitton, Cornwall; tourmaline from Buttern Hill Placers, Altarnun, Cornwall; rutile from Lanterdan Quarry, Treknow, Cornwall; epimorph in siderite from Virtuous Lady Mine Buckland, Monachorum, Devon; banded gneiss specimen. 2.04 kg total, 3.2-13.7 cm



From the property of a Cornwall, UK, gentleman.