Superdeep Diamond, Michelle Wenz

This is a rough diamond weighing nearly one third of a carat (about the size of a pea). Diamonds, a form of pure carbon, are formed under immense pressures found 100 miles underground. Ancient volcanic eruptions carried diamonds to the surface worldwide.

In western Brazil, diamonds like this one have superdeep origins – they formed below 500 miles depth. Scientists study these superdeep diamonds because mysterious water-rich minerals are trapped inside them; minerals found nowhere else on Earth.

Michelle Wenz

Department of Earth & Planetary Sciences

Tools & Techniques: Stereomicroscope, Focus stacked image

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