Rare Earths
In 1885 von Welsbach used a method he developed himself to separate didymium for the first time. He saw several different colored versions which he named "praseodymium" (green) and "neodidymium" (pink); the latter then became the more common name for the element, neodymium.
Read more about this topic: Carl Auer Von Welsbach
Famous quotes containing the word rare:
“I am sorry to say we whites have a sad reputation among many of the Polynesians. The natives of these islands are naturally of a kindly and hospitable temper, but there has been implanted among them an almost instinctive hate of the white man. They esteem us, with rare exceptions, such as some of the missionaries, the most barbarous, treacherous, irreligious, and devilish creatures on the earth.”
—Herman Melville (1819–1891)