AntonÃ­n DvorÃ¡k (1841â1904) Antonin Dvorak was a son of butcher, but he did not follow his father's trade. While assisting his father part-time, he studied music, and graduated from the Prague Organ School in 1859.
Monazite-(Ce), which is more abundant in the Earth's crust than xenotime, has dysprosium oxide contents of 0.2% to 0.9% of the REO content. For more information on the heavy rare earth element dysprosium, visit www.REEHandbook.com â the ultimate source for information on rare earth elements.s the second member of the heavy rare earth elements (HREE), dysprosium has two paired electrons giving it the ability to detect radiation, improve permanent magnets, store digital data, precisely aim lasers, or glow in the dark.
Dysprosium belongs to a series of elements called rare earths, lanthanides, or 4f elements.. The occurrence of dysprosium is low: 4.5 ppm (parts per million), that is, 4.5 grams per metric ton in Earth 's crust, and 2 Ã 10 ppm in seawater.verview. Dysprosium is one of 15 rare earth elements. The name rare earth is misleading because the elements in this group are not especially uncommon. However, they often occur together in the earth and are difficult to separate from each other. A better name for the rare earth elements is lanthanides.