Diamond

• 'Quartz' crystals at the Earth's core power its magnetic field (08 Oct 2017)
  
• In Neptune, it's raining diamonds (24 Sep 2017)
  
• Toward mass-producible quantum computers: Process for positioning quantum bits in diamond optical circuits could work at large scales (20 Sep 2017)
  
• Researchers use laser to levitate, glowing nanodiamonds in vacuum (08 Sep 2015)