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Scientists discovered a sample of perovskite, the world's fourth most abundant mineral, locked in a diamond unearthed from the Cullinan Mine in South Africa. Diamonds from the mine have high scientific value because they offer insights into the deepest parts of Earth’s core. (Photo: Petra Diamonds)

Scientists found the world’s fourth most abundant mineral in diamond

For the first time ever, scientists at the University of Alberta have discovered Earth’s fourth most abundant mineral—calcium silicate perovskite, at Earth’s surface. Scientists found...