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 was discovered in 1886 by French chemist Paul Ãmile Ã©mile lecoq De boisbaudran when he separated dysprosium oxide from holmium. Oxide boisbaudran also discovered gallium in 1875 and isolated samarium for the first time in 1879 using fractional. separationaturally occurring dysprosium is a mixture of seven isotopes and they are found in the percentages shown: 156 Dy (0.06%), 158 Dy (0.1%), 160 Dy (2.3%), 161 Dy (18.9%), 162 Dy (25.5%), 163 Dy (24.9%) and 164 Dy (28.2%). The most abundant isotope is 164 Dy at 28.2%.