Comprising three opened composite nodules with colourful, dyed crystals. 377 grams total, 44-88 mm



From a Cambridgeshire, UK, collection.

A colossal cut section of cream-coloured stalagmite showing natural ripples. 66.7 kg, 90 cm



Previously from a Hong Kong collection. Ex property of a London, UK, gentleman, 1990s.

A stalagmite, is an upward-growing mound of mineral deposits growing on the floor of a cave due to accumulation of material deposited from ceiling drippings. They are typically formed by the deposition of calcium carbonate and other minerals, which is precipitated from mineralised water solutions. Limestone is the chief form of calcium carbonate rock which is dissolved by water that contains carbon dioxide, forming a calcium bicarbonate solution in underground caverns.

Comprising: pale pink heulandite from Nasik, India; galena from Sweet Water Mine, Missouri, USA; azurite and malachite from shaft no. 3, TCL Mine, Tsumeb, Namibia; aragonite 'sputnik' from Spain; galena and sphalerite from Callow Hill Quarry, Fontesbury, Shropshire; sphalerite with pyrite from Huaron Mining District, Cerro de Pasco, Peru; cluster of apophyllite crystals from Poona, India; stilbite from Poona, India; wolframite from Carrock Mine, Mungrisdale, Caldbeck Fells, Cumbria; malachite displaying some silky lustre from the Democratic Republic of Congo. 893 grams total, 32-66 mm



From the private collection of a Cornish, UK, gentleman.

Comprising mainly cylindrical and oblate beads. 18.3 grams total, 4-8 mm



Private collection, London, UK.

Showing the pair of horn-like spines behind the glabellum, specific for Dicranurus monstrosus odontopleurid trilobites; some restoration. 522 grams, 16.2 cm



From a Cambridgeshire, UK, collection.

A group of 50 blue calcite specimens. 518 grams total, 17-34 mm

Very fine condition.

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

Upper mandible of the cave bear Ursus spelaeus with two large molar teeth in place. 128 grams, 18.5 cm



Acquired on the UK art market. From the private collection of an East Anglian, UK, Specialist Collector.

The cave bear was a prehistoric species of bear that lived in Europe and Asia, and became extinct about 24,000 years ago during the Last Glacial Maximum.

An irregular specimen showing the internal structure. 314 grams, 10.1 cm



From a Cambridgeshire, UK, collection.

A reconstructed cluster of Trochocyathus sp. coral specimens arranged on a matrix; held in a collector's display case. 270 grams total, 92 mm



From Lleida, Spain. From a Cambridgeshire, UK, collection.

Comprising: malachite on azurite, sodalite, pyrite, malachite, imperial topaz, colourless topaz, azurite in granite, bicoloured tourmaline, and others. 407 grams total, 27-59 mm



Property of a North West London, UK, lady.

Restrung group of annular, tabular and other types with granulated collars. 38.9 grams, 48 cm



From London, UK, gallery collection, 1990s.

Comprising two cut and polished copal specimens, each with small insect and other inclusions. 9 grams total, 41-44 mm



From a Lincolnshire, UK, collection.