Natural History - Fossil Mosasaur 'Marine Dinosaur' Tooth on Composite Matrix

Comprising: enargite with quartz from Montana, USA, collection number 528; green fluorite from Cumbria, England, collection number 435; kunzite from Minas Gerais, Brazil, collection number 476; aragonite, collection number 140; arsenopyrite from England, collection number 47; colourless calcite, collection number 410; pyrite and chlorite in matrix slate from Devonshire, England, collection number 46; selenite from Sahara Desert, Libya, collection number 349; cuboid limonite from USA, collection number 498, with an old Gregory, Bottley & Lloyd label. 142 grams total, 18-66 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. Each specimen accompanied by an original historic index file card.

A cut slice of diogenite, an igneous rock rich in the magnesium- and iron-rich silicate orthopyroxene, recorded as: Northwest Africa 4664; displayed in a Swiss membrane box, inked note 'NWA 4664' to one side. 10.2 grams, 53 mm (58.6 grams total, 99 x 75 mm including case)



From Algeria. Ex Mile High Meteorites, U.S.A. From a Leicestershire, UK, collection. Accompanied by an original identification card.

Vesta is the second largest asteroid and the only large one covered with basalt; the fine-grained volcanic rock makes up the dark areas of the Moon and the huge shield volcanoes on Mars. Three groups of achondrites (igneous meteorites) are widely thought to have come from Vesta; these are the HED meteorites: Howardites, Eucrites and Diogenites.

Showing bark detail on the edges, the cut faces showing attractive agatized patterns. 1.41 kg, 26 cm



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