Minerals and gems are classified by their physical properties, including hardness, luster, color, density, and magnetism.

In celebration of National Rock Day, learn how several rock specimens in the new exhibition “From These Lands” shed light on the nation’s geological heritage Ashley D'Souza The National Museum of ...

Explore the search for radioactive rocks and minerals, uncover fascinating geological discoveries, and learn about the science and safety considerations behind radioactive ore exploration. #Radioactiv ...

Add Yahoo as a preferred source to see more of our stories on Google. A close-up photo of a rock containing a raw gold nugget in a mine. Rocks and minerals hold precious clues about how Earth formed ...

Earth formed about 4.6 billion years ago, during the geological eon known as the Hadean. The name “Hadean” comes from the Greek god of the underworld, reflecting the extreme heat that likely ...

Unusual hydrogen signatures in volcanic rocks may come from Earth’s core. Simulations suggest ancient magma crystallization cannot explain the differences.

Make learning rocks and minerals engaging and visual with this colorful science resource! This printable resource includes posters and hands-on activities covering rock types, mineral properties, the ...

KALAMAZOO COUNTY, MI -- Stepping into Rockhound Rock Shop, visitors are transported to another world. There’s a seemingly never-ending cascade of rooms in the Galesburg shop, each with a different ...