Paragraph 2
Researchers used a
machine to simulate the
under which Mercury formed. The machine is used to make
diamonds. Researchers made a
of silicon, magnesium and aluminium inside a graphite
. This was subjected to
70,000 times
than Earth's. It was heated to
of 2,000ºC. A researcher speculated about the diamonds on Mercury. He said: "They would [resemble]
diamonds." Scientists believe there are a
tons of diamonds beneath the Earth.