article_snippet: Research was carried out by scientists at the University of Utah Utah by crushing minerals between diamonds to replicate conditions in Earth's interior.
article_snippet: Last year, Yale said it had solved the mystery - and said the key is tiny minerals within rocks.
article_snippet: We think it all comes down to the behavior of tiny grains of minerals within rocks,' said Yale geophysicist Dr David Bercovici, lead author of research published  in the journal Nature.
article_snippet: Dr Lowell Miyagi holds a press that houses a diamond anvil, in which minerals can be squeezed a pressures akin to those deep within Earth.
article_snippet: Dr Lowell Miyagi and a colleague in Germany squeezed mineral crystals in a diamond anvil under pressures like those deep underground .
article_snippet: We can't get down there, so We have to do experiments to see how these minerals behave under a wide range of conditions, and use that to simulate the behavior of Earth.'
highlights_snippet: Research crushed minerals between diamonds to mimic Earth's core .
  