Part Time Accounting Assistant. Accounting Now has an exciting opportunity with a Manufacturing firm in the Northwest suburbs. Our client is looking to add a Part Time Accounting Assistant to their team and ready to start someone quickly! The chosen candidate will demonstrate entry leve.
Lanthanum is considered a rare earth metal because the process to mine it is difficult, time-consuming and expensive. Lanthanum is rarely the dominant lanthanide found in the rare earth minerals, and in their chemical formulae it is usually preceded by cerium. Rare examples of La-dominant minerals are monazite-(La) and lanthanite-(La).
Lanthanum is usually found only in two different kinds of ores. World production of lanthanum oxide in around 12.000 tonnes per year, and currently nown reseves of lanthanum are around 6 million tonnes. The use of lanthanum is still growing, due to the fact that it is suited to produce catalysers and to polish glass.