Comprising twenty prismatic points, some twinned or with parallel growth. 1.57 kg total, 4.7-10.7 cm



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

An exquisite formation of grey and white druzy quartz on a geode section, a pair of cut stalagmite 'eyes' on one side with polished upper face showing the layered structure; mounted on a custom-made display stand. 3.85 kg, 23 x 18 x 15 cm, 29 cm including stand



From Artigas, Uruguay. Property of a London lady.

Comprising two tapering teeth with brown enamel; repaired and restored. 82 grams total, 65-76 mm



From a Lincolnshire, UK, collection.

The Spinosaurus was both a beachcomber-type scavenger and an active hunter, taking small stranded Plesiosaurs, Pterosaurs, turtles and large fish; adults weighed up to 21 tonnes and grew up to 18 meters long.

Showing good scale detailing, possibly Rhacolepis buccalis. 935 grams, 26 cm



From a deceased estate of a gentleman collector from the Wirral Penninsula.

Composite nodule with enhanced vibrant purple crystals. 187 grams total, 58-60 mm



From a Cambridgeshire, UK, collection.

Boxed group of vibrant pink rose quartz specimens. 5.4 kg total, 5.7-10.9 cm



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

Comprising two teeth showing good brown enamel, repaired. 74 grams total, 75-78 mm



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.

A glazed display case with mounted specimens of various teeth, vertebrae and ray palates, with identifying labels. 927 grams total, 34.6 x 24.6 cm



From a Cambridgeshire, UK, collection.

A nickel-iron meteorite (IAB). 90.1 grams, 43 mm



From a Lincolnshire, UK, collection.

A crater field of roughly 26 craters was found in the vicinity of this crater, which is estimated to date to 4-5 thousand years BP. The age of the meteorite itself is thought to be c.4.5 billion years, formed as part of the development of this solar system. The largest two fragments, the 30.8-ton Gancedo and 28.8-ton El Chaco, are among the heaviest meteorite masses ever recovered on Earth. In 1576, the governor of a province in Northern Argentina commissioned the military to search for a large mass of iron, which it was believed the local people claimed had fallen from the sky and which they used for their weapon production. The expedition discovered a large mass of metal, which was assumed to be an iron mine, and brought back a few samples, which were described as being of unusual purity. Following the legends, in 1774, Don Bartolomé Francisco de Maguna rediscovered the iron mass. He himself did not believe that the stone had fallen from the sky and assumed that it had formed by a volcanic eruption. However, he sent the samples to the Royal Society of London. In 1990, it became protected by law.

On a rectangular matrix, showing good detail. 168 grams, 13.5 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.

Conical tooth with root; repaired. 43.1 grams, 12.5 cm



From a Lincolnshire, UK, collection.

The Spinosaurus was both a beachcomber-type scavenger and an active hunter, taking small stranded Plesiosaurs, Pterosaurs, turtles and large fish; adults weighed up to 21 tonnes and grew up to 18 meters long.

A group of 50 green fuchsite mica specimens with pearly lustre. 1.2 kg total, 28-54 mm

Very fine condition.

Mineral Imports, London, UK. Gregory, Bottley & Lloyd (Gregory's). From the private collection of John Meredith, acquired since the 1990s; thence by descent.