Natural History - Historic 'Australia' Boulder Opal Mineral Specimen

Comprising: blue kyanite from Minas Gerais, Brazil, collection number 427; stained calcite from Ghajn Tuffer, Malta, collection number 41; amethyst geode half from Brazil, collection number 276; pyrite, collection number 343; bornite with calcite, collection number 162; light blue celestine, collection number 264; chalcopyrite on sphalerite on dolomite from Joplin district, Missouri, USA; jasper from North Transvaal, South Africa, collection number 226; chalcopyrite from North Transvaal, South Africa, collection number 193. 655 grams total, 32-77 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. Eight specimens accompanied by an original historic index file card.

Each cut section with clusters of purple to lavender coloured crystals. 1.25 kg total, 32-94 mm



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

From the lower jaw, displaying two teeth from Prognathodon sp.; repaired. 89 grams, 87 mm



From the phosphate mine region, Khouribga, Morocco, North Africa. Acquired 1950s-1960s. From an old Bristol, UK, palaeontological 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.