Outcrop

An outcrop or rocky outcrop is a visible exposure of bedrock or ancient superficial deposits on the surface of the Earth and other terrestrial planets.

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Source: Wikipedia · Image: Wikimedia Commons · CC BY-SA 3.0

ROCKHOUNDRY

Read the stone — minerals, crystals, and the rockhound's field craft.

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Museum entries, images, and facts are drawn from Wikipedia and Wikimedia Commons, used under public-domain and Creative Commons licenses.