Middle-sized fish of slender shape, a pointed snout and a forked caudal fin; traces of its last meal, a whole fish, in its stomach. 552 grams, 22 cm



From Lebanon. From a Cambridgeshire, UK, collection.

Comprising one hundred clusters of small pyrite crystals. 990 grams total, 16-29 mm



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

Comprising four teeth from the lower right jaw of a large male. 640 grams total, 8.1-11.8 cm



Perma frost of Siberia. From a Netherlands collector in the 2020s. From a private collection.

Comprising three domed and polished specimens. 325 grams total, 58-73 mm



From a Lincolnshire, UK, collection.

Comprising cut and polished pieces, probably recycled material mined in ancient Roman times between the 1st and 5th centuries A.D. 270 grams total, 3.3-15.5 cm



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

Mons Porphyrites (today Jabal Abu Dukhkhan) is the mountainous site of a group of ancient quarries in the Red Sea Hills of the inhospitable eastern desert in Egypt, a five-day trip from the Nile during Roman times. They were discovered by Caius Cominus Leugas in 18 A.D., and during the Roman Empire, the mines officially belonged to the emperor and were the only known source of the Imperial Porphyry, Mons Porphyrites. This dark purple stone was associated with royalty and used for prestigious sculpture and architecture. The location of the mines was lost sometime in the 5th century and rediscovered in the early 19th century. Excavations in the area have revealed the well-preserved quarries and the dwelling places of the quarrymen, and also thousands of ostraca have been discovered containing messages that provide details of how the quarrying took place, and of how the highly skilled quarrymen ordered their food.

Comprising three joined leaves from an extinct genus Sapindopsis, related to the modern Platanaceae family. 1.08 kg, 20.5 cm



From Lebanon. From a Cambridgeshire, UK, collection.

The seed cut in half through the middle, exposing the internal structure. 370 grams total, 94 mm each



From London Clay, Isle of Sheppey, Kent, UK. 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 nodule with a single Eleganticeras ammonite specimen. 1.59 kg, 11.5 cm



From a Lincolnshire, UK, collection.

Comprising ten polished transparent to translucent slices, one showing interesting 'eye' formations, some with enhanced colouring. 593 grams total, 7.9-11.5 cm



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

A Mosasaur prognathodon tooth with some root, showing good enamel; repaired. 120 grams, 13.2 cm



From a Cambridgeshire, UK, collection.

Comprising one hundred rich purple specimens, including some pyramidal terminations. 1.05 kg total, 22-38 mm



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

Comprising two polished fossiliferous eggs, each showing a partial Orthoceras specimen. 300 grams total, 49-67 mm



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.