Natural History - Historic 'Sierra Madre, Mexico' Rhyolite Mineral Specimen

Comprising: ferruginous quartz from Cornwall, England, collection number 438, with an old Gregory, Bottley & Lloyd label; a cut and polished agate geode slice from Brazil, collection number 351; apophyllite from Poona, Bombay, India, collection number 176; brochantite on quartz from Bingham, New Mexico, USA, collection number 614, with an old Simon Harrison Minerals label; kyanite from Graves Mountain, Georgia, USA, collection number 616; wulfenite with mimetite from San Francisco Mine, Sonora, Mexico, collection number 488; a cut and polished agate slice from Brazil, collection number 364; a cut section of agate geode, collection number 32; eight specimens of brown crystal. 358 grams total, 24-74 mm



Acquired on the UK mineral and fossil market, since 1970. From the historic mineral collection of Richard Valentine Cain, London, UK, thence by descent. Seven specimens accompanied by an original historic index file card.

Restrung using recently polished Mammuthus primigenius bone beads. 175 grams, 60 cm



Ex London collection, 2000s.

A large Charonosaurus sp. hadrosaur egg retaining evidence of the original leathery surface. 3.4 kg, 16 cm



Acquired 1983-1990. Private collection, Hove, UK.

Hadrosaurs were large dinosaurs, growing up to 10 metres in length, belonging to the ‘Duck-Billed’ group of dinosaurs. They are considered the ‘herd animal’ of the Cretaceous, having been found buried together in their thousands. Dinosaur egg fossils are known from approximately two-hundred sites around the word, particularly in Asia. This nest comes from the Xixia Formation, Henan region of China, which produces some of the best preserved eggs in the world. These eggs can yield entire embryos within them, making them an essential tool for understanding the biology of these creatures.