Sound Waves Reveal Huge Cache of Diamonds Inside the Earth

By Anthony Watts – Re-Blogged From WUWT

Sound waves reveal diamond cache deep in Earth’s interior

Study finds 1–2 percent of Earth’s oldest mantle rocks are made from diamond.

From MIT:

There may be more than a quadrillion tons of diamond hidden in the Earth’s interior, according to a new study from MIT and other universities. But the new results are unlikely to set off a diamond rush. The scientists estimate the precious minerals are buried more than 100 miles below the surface, far deeper than any drilling expedition has ever reached.

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