Among these, one stands out as the rarest of them all: taaffeite. Taaffeite holds the title of the rarest crystal on Earth.

Effective at preserving clues about rare earth mineral formation, these crystals can now help us find the rich rare earth mineral deposits that will be required to power the green energy revolution.

Research suggests that calcium may have played a key role in guiding the development of a specific molecular handedness in ...

These rusted rocks tell when buried formations reached Earth's surface ... inside it holds hematite micro-crystals—the key to unlocking geochemical histories masked for eons.