Natural History - Boxed Polished Amethyst Crystal Obelisk Group [3]

Comprising: erythrite from Mount Cobalt, Queensland, Australia, collection number 473; azurite from Nchanga Mine, Chingola, Zambia, collection number 443, with an old Gregory, Bottley & Lloyd label; a cut and polished onyx agate slice from Brazil, collection number 270; turquoise from Turquoise Mountain, Arizona, USA, collection number 487, with an old Gregory, Bottley & Lloyd label; natrolite from Ireland, collection number 496; a cut and polished agate slice from Mexico, collection number 327; quartz, collection number 312; quartz from North Transvaal, South Africa, collection number 206; quartz from Cumbria, England, collection number 19. 353 grams total, 32-67 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.

The large nugget with metallic lustre; supplied in a display box. 235 grams total, 58 mm



From Great Rock mine, Devon, UK. Collected in person in 1964. From the private mineral collection of Stephen Atkinson, Harpenden, UK. Accompanied by a copy of a letter from the vendor giving details of him collecting these minerals throughout his life.

The mineral was an important ingredient in the rust-resistant paint used on Royal Navy ships and bridges. Shiny ore has also been used in glaze for pottery, decorative bricks and tiles giving it a sparkly finish.

With white to grey crystals arranged in a flower-like formation. 195 grams, 82 mm



Ex Gregory, Bottley & Lloyd (Gregory's).