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 اليورانينيت (Uoraninite)

 من معادن اليورانيوم الأولية

Uoraninite

يشتمل هذا الرابط علي العديد من صور لليورانينيت وهو من معادن اليورانيوم الأولية   Formula: UO2

:  System :Isometric   Black, Colour:brownish-black, ... Lustre::Greasy, Sub-Metallic, Dull

Hardness:5-6  Member of:Uraninite Group

Name: Re-named in 1845 by Wilhelm Karl von Haidinger for its composition containing uranium. Originally recognized before the element uranium was known and called "schwarz beck-erz" by Franz Ernst Brückmann in 1727. Subsequently described with several names including "pseudogalena" and "pitch-like zinc-blende" by Johan Gottschalk Wallerius (Vallerius) in 1747. Named pechblende by Axel Cronstedt in 1758. Named "uranerz" by Martin Klaproth after he discovered the element uranium in this mineral. Many spelling variations of the above names known.