Scientists in the Department of Materials Science and Engineering at North Carolina State University revealed that they have discovered a new form of solid carbon. Q-carbon, as they call it, joins graphite and diamond in the element’s list of crystalline forms.
Q-carbon, however, differs from graphite and diamond in important ways. It’s magnetic, its hardness is greater than that of a diamond, and it doesn’t occur naturally, at least not on Earth. (The discoverers speculate that Q-carbon could form in planetary cores.)
Q-carbon does not appear to be a threat to the diamond industry just yet, since incredible amounts of energy are needed to make it. The discoverers report that they’ve used lasers to raise the temperature of a sample of elemental carbon to 4,000 K (6,740 °F [3,730 °C]) before quickly chilling it to create Q-carbon as well as structures made of diamonds within the Q-carbon matrix.
Source: http://www.britannica.com/story/new-form-of-solid-carbon-found
almost good