Beschreibung:

NATURAL HISTORY - MINERAL SPECIMEN COLLECTION A mixed group comprising: selenite rose specimens from Mexico; polished chalcopyrite from Peru; rutile crystals in polished quartz from Brazil; polished mugglestone from South Africa; polished stromatolite pebbles from the Pre-Cambrian age (2.7 billion years BP) of the Salt Lake of Uyuni, Oruro state, Bolivia; bornite specimens (also known as peacock ore or chalcopyrite) from Mexico; unusual green-coloured calcite from Chihuahua, Mexico; a small amethyst point from Brazil; a sphalerite and calcite specimen from Northumberland; a sphalerite specimen from Northumberland; a citrine specimen from Brazil. 2.6 kg total, 2.5-10.5cm (1 - 4"). Fine condition. [57, No Reserve] Provenance Property of a Lady, Swaffham, UK; acquired 1970s. Footnotes Mugglestone comprises three minerals - haematite, jasper and tiger eye.