A pair of diamonds that formed hundreds of kilometers deep in Earth’s malleable mantle both contain specks of materials that form in completely opposing chemical environments—a combination so unusual ...

Pegmatite is a type of igneous rock characterized by its large crystal sizes, which can range from one centimeter to several ...

If you were to hold a grain of zircon in your hand, it would look like nothing special — just a tiny, sand-sized crystal, no ...

Join us as we explore the mesmerizing world of natural amethyst gems. This video delves into the properties, locations, and formations of these stunning gemstones. Discover how amethyst is formed, ...

Nature has many rhythms: the seasons result from Earth's movement around the sun, the ticking of a pendulum clock results ...

Painite, Gold Sheen Sapphire, Red Beryl, and Musgravite. Learn why collectors value these scarce, unique stones above all ...

The chemical make-up of crystals that formed from magma hint at an increase in the number of meteorites battering Earth’s ...