Natural History - Historic 'Tsumeb, South West Africa' Dioptase Crystal Specimen

Comprising: bismuth from Czechoslovakia, collection number 417; barite from Colorado, USA, collection number 570; pyrite on baryte from Brazil, collection number 122; bournonite and chalcopyrite on quartz from Peru, collection number 442; bornite from Mexico, collection number 62; pyrite and sphalerite from Silvermine, Tipperary, Ireland, collection number 413; cut calcite geode half from Brazil, collection number 247; chalcopyrite from North Transvaal, South Africa, collection number 193; quartz from Brazil, collection number 114. 1.57 kg total, 4.9-11 cm



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

Comprising a pair of Mosasaur prognathodon jaw section, each with three teeth. 1.16 kg, 19 cm



From a Cambridgeshire, UK, collection.

The Mosasaur is an extinct, large marine reptile dinosaur with a snake-like 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.

Each with polished face displaying brown, grey and orange banding. 1.45 kg total, 13-15 cm



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