Diamond (in Eclogite)

Diamonds grow at depths of at least 150 km (90 mi), in the thick lithosphere beneath the older parts of continents. By comparing the different kinds of carbon atoms in diamonds, scientists can track the carbon's source. Some carbon was once organic matter on Earth's surface and was subducted into the mantle. The rest originated in the mantle.

Group: Native Elements
Catalog Number: 116659