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artificial
If you are creating your own large display of the elements
Yttrium is almost always found in combination with lanthanide elements in rare-earth minerals
The artwork and element samples have been cast in such a way that they appear to be floating in the middle of the acrylic
Pure radium is silvery-white
Neodymium Element Cube Mini Museum artificialNeodymium's atomic number is 60 and its symbol is Nd. Neodymium is a hard, silvery rare earth metal that tarnishes when exposed to moisture in the air. Despite neodymium being classified as a rare earth element, it is just as common as nickel or copper. Because pure neodymium is not found naturally in the earth's crust, it is mined from various ores and minerals. Neodymium is used to produce the strongest permanent magnets in the world, laser filters,
