Recent Examples of lanthanum from the Web
But Reuters notes that while neodymium costs about $100 per kg and dysprosium costs about $400 per kg, lanthanum and cerium cost about $5 to $7 per kg.
Marine scientists at China’s Guangxi Key Laboratory recently deduced the strength of East Asian winter monsoons over the past 150 years by measuring levels of rare earth elements, such as lanthanum and cerium, in each layer of a Poritescoral core.
Instead of neodymium or dysprosium, the magnet uses less-expensive rare-earth metals lanthanum and cerium.
The iPhone contains a chorus of eight rare earth elements: neodymium, praseodymium, dysprosium, terbium, gadolinium, europium, lanthanum, and yttrium.
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