Rare earth elements - Topics

Why is separating rare earths so much harder than mining them? How much of a magnet's cost comes from the dysprosium in it? How much neodymium does a wind turbine need per megawatt? What can replace neodymium magnets in an electric traction motor? Can a ferrite motor match a rare earth motor in an electric vehicle? How do you tell when a magnet has been over specified for the job? How do you design a product that needs less rare earth? How long does it take to bring a new rare earth mine into production? What does an export quota do to the price of a motor? How do you recycle rare earths from old hard drives profitably? What is monazite and why does it come with radioactivity? What is the environmental cost of solvent extraction in rare earth processing? Why do rare earth prices move so violently? Why does one country dominate rare earth refining rather than mining? What stockpile does a country need to survive a rare earth cutoff? Why are heavy rare earths so much scarcer than the light ones?