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 is one of the rare earth elements in the lanthanide series of the periodic table. The element was discovered in 1886 by Paul mile Lecoq de Boisbaudran, who separated one of its compounds from an oxide of holmium. Dysprosium is 42nd in abundance among the elements in the earth's crust.olmium is one of the least abundant of the rare earth metals, ranking 55th in order of abundance of the elements in the earth's crust. Holmium has an atomic weight of 164.93. It melts at about 1474 C (about 2685 F), boils at about 2700 C (about 4892 F), and has a specific gravity of 8.8.