That’s a ripple mark left by water that used to sit on top of this before it was rock. This used to be sand and other sediment - that's why it is called sandstone - which is a type of ...

Rocks come in a lot of different shapes and sizes, and each tells a unique story. But generally speaking, there are three ...

Rocks can experience squeezing, stretching, or pushing in different directions in response to stress. This response depends on the type of stress, the rate at which it is applied, the ...

They are nodule-like rocks typically found in volcanic regions, and specifically, those with rhyolite lavas. They look a bit ...

When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. A striped rock that looks out of place in its surroundings on the slopes of the inner wall ...