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rocks

This collection contains a selection of content from NG Education about rocks. Use search to find more.

Photograph by Jennifer Plourde, MyShot

Latest Updates for rocks

Largest Diamond in the World Discovered

Largest Diamond in the World Discovered

On January 26, 1905, miners in South Africa unearthed the Cullinan diamond, the largest gem-quality diamond ever discovered.

volcanic ash

volcanic ash

Volcanic ash is made of tiny fragments of jagged rock, minerals, and volcanic glass. Ash is a product of explosive ...

magma

magma

Magma is a mixture of molten and semi-molten rock found beneath the surface of the Earth.


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