Continent-size islands deep inside Earth's mantle could be more than a billion years old, a new study finds.

Opinions expressed by Forbes Contributors are their own. David Bressan is a geologist who covers curiosities about Earth. “We were thrilled!” said Dr. David Grant, a researcher at the ...

NASA's Curiosity rover has made a groundbreaking discovery on Mars by uncovering pure sulfur crystals within a broken rock.

The Jack Hills, in Western Australia, contain tiny traces of rock that are older ... making them the oldest Earth materials ever found. Zircon crystals are durable; they can survive even when ...

This reliquary holds a bone fragment purportedly belonging to Saint Sebastian, within a central rock-crystal vessel. Reliquaries—containers constructed to hold relics, typically the bones of saints or ...

Thermochronology allows researchers to estimate the temperature that mineral crystals ... Snowball Earth. "The underlying concept is pretty simple: Something removed a whole lot of rock, resulting ...

A resinous substance found near the surface. Earth Crystal is a mineral you can get in Stardew Valley. You can forage it in the Mines from levels 1-39, or obtain them from geodes, or loot them ...