Davidite
Encyclopedia
Davidite is a rare earth oxide
mineral with chemical end members La
and Ce
. It exists in two forms:
Oxide
An oxide is a chemical compound that contains at least one oxygen atom in its chemical formula. Metal oxides typically contain an anion of oxygen in the oxidation state of −2....
mineral with chemical end members La
Lanthanum
Lanthanum is a chemical element with the symbol La and atomic number 57.Lanthanum is a silvery white metallic element that belongs to group 3 of the periodic table and is the first element of the lanthanide series. It is found in some rare-earth minerals, usually in combination with cerium and...
and Ce
Cerium
Cerium is a chemical element with the symbol Ce and atomic number 58. It is a soft, silvery, ductile metal which easily oxidizes in air. Cerium was named after the dwarf planet . Cerium is the most abundant of the rare earth elements, making up about 0.0046% of the Earth's crust by weight...
. It exists in two forms:
- Davidite-(La) (La,Ce,Ca)(Y,U)(Ti,Fe3+)20O38 discovered at Radium Hill mine, South AustraliaSouth AustraliaSouth Australia is a state of Australia in the southern central part of the country. It covers some of the most arid parts of the continent; with a total land area of , it is the fourth largest of Australia's six states and two territories.South Australia shares borders with all of the mainland...
in 1906 and named for Australian geologist Tenatt William Edgeworth DavidEdgeworth DavidSir Tannatt William Edgeworth David KBE, DSO, FRS, was a Welsh Australian geologist and Antarctic explorer. A household name in his lifetime, David's most significant achievements were discovering the major Hunter Valley coalfield in New South Wales and leading the first expedition to reach the...
(1858-1934). - Davidite-(Ce) (Ce,La)(Y,U)(Ti,Fe3+)20O38 first described in 1960 from Vemork, IvelandIvelandIveland is a village and municipality in Aust-Agder county, Norway. It is part of the traditional region of Sørlandet. The administrative center is the village of Birketveit.-General information:...
, NorwayNorwayNorway , officially the Kingdom of Norway, is a Nordic unitary constitutional monarchy whose territory comprises the western portion of the Scandinavian Peninsula, Jan Mayen, and the Arctic archipelago of Svalbard and Bouvet Island. Norway has a total area of and a population of about 4.9 million...
.