Natural History - Whitby Dac Fossil Ammonites

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.

An irregular section of angrite meteorite recorded as: Northwest Africa 2999; displayed in a Swiss membrane box and with an inked 'NWA 2999' to one side. 1.73 grams, 20 mm (28.4 grams total, 84 x 59 mm including case)



From the Sahara Desert, North West Africa. Ex Hupé collection, U.S.A. From a Leicestershire, UK, collection.

This specimen fragment formed part of a group of twelve individual dark brown stones totalling 392 grams, each with a thin fusion crust, that were acquired by G. Hupé in August 2004 in Tagounite.

With dark crystal formation, collection number 414. 80 grams, 61 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. Accompanied by an original historic index file card and an old Gregory, Bottley & Lloyd label.