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The lanthanite crystal structure consists of layers of 10-fold coordinated REE-oxygen (O) polyhedra and carbonate (CO 3 2−) groups connected by hydrogen bonds to interlayer water molecules, forming a highly hydrated structure. [8]
Lanthanide ions are used as the active ions in luminescent materials used in optoelectronics applications, most notably the Nd:YAG laser. Erbium-doped fiber amplifiers are significant devices in optical-fiber communication systems. Phosphors with lanthanide dopants are also widely used in cathode-ray tube technology such as television sets. The ...
Binagadi asphalt lake – cluster of tar pits located 1 km southeast from Binagadi settlement, near Hirda-Girrar hillock in urban Baku, Azerbaijan.Fossils from the species of 41 species of mammals, 110 species of birds, 2 reptiles, 1 amphibian and 107 insects recovered from the pits are on display at the Baku Natural-Historical Museum.
Mount Weld mine is a rare earth mine in Western Australia, located about 30 km (20 mi) south of Laverton and 120 km (75 mi) east of Leonora. [1] It is one of the largest rare earth deposits in the world. [2] It is owned by Lynas Corporation. Mining began at the Mount Weld site in 2011. [3]
Lanthanum is the first element and prototype of the lanthanide series. In the periodic table, it appears to the right of the alkaline earth metal barium and to the left of the lanthanide cerium. Lanthanum is generally considered the first of the f-block elements by authors writing on the subject.
The rare earth industry in China is a large industry. Rare earths are a group of elements on the periodic table with similar properties. Rare earth metals are used to manufacture technologies including electric vehicles (EVs), wind turbines, consumer electronics and other clean energy technologies. Rare earth elements are also important to national governments because they are used in the ...
Lanthanide metals react exothermically with hydrogen to form LnH 2, dihydrides. [1] With the exception of Eu and Yb, which resemble the Ba and Ca hydrides (non-conducting, transparent salt-like compounds),they form black pyrophoric, conducting compounds [6] where the metal sub-lattice is face centred cubic and the H atoms occupy tetrahedral sites. [1]
It is regarded as a world-class rare-earth mineral deposit. [3] The metals that can be extracted from it include: [ 6 ] cerium , lanthanum , neodymium , [ 7 ] and europium . At 1 July 2020, Proven and Probable Reserves , using a 3.83% total rare-earth oxide (REO) cutoff grade, were 18.9 million tonnes of ore containing 1.36 million tonnes of ...