The sparkle of a diamond hides an extraordinary journey from the depths of the Earth, a voyage that science is only beginning ...

Diamond, with its tough-to-break carbon lattice of interlocking cubes, is traditionally considered the hardest material on Earth. Yet a rare form of diamond known as lonsdaleite—a crystal with carbon ...

Sign up for CNN’s Wonder Theory science newsletter. Explore the universe with news on fascinating discoveries, scientific advancements and more. A layer of diamonds ...

Molten carbon can form into either diamond or graphite. A new study shows how graphite can sometimes form even under conditions that should lead to diamond. (Getty Images) The graphite found in your ...

A study of tiny mineral 'inclusions' within diamonds from Botswana has shown that diamond crystals can take billions of years to grow. One diamond was found to contain silicate material that formed ...

We’re used to volcanoes spewing up magma and ash, but sometimes they’ll gush forth diamonds. And sometimes, those diamonds carry with them strange forms of matter from the deepest bowels of the earth, ...

Forbes contributors publish independent expert analyses and insights. David Bressan is a geologist who covers curiosities about Earth. Currently, diamond is regarded to be one of the hardest and most ...

X-rays can do a lot of useful things, but who knew they could cause crystals to form? Researchers have discovered that X-rays can trigger the formation of a new type of crystal: charged cylindrical ...