Rocks are forced to change shape at or near plate boundaries. Rocks can experience squeezing, stretching, or pushing in different directions in response to stress. This response depends on the type of ...

Rocks and minerals are closely related, but there are fundamental differences between the two. When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works.

The set of rocks strewn throughout Baltimore likely represent a slice of prehistoric seafloor from a now-vanished ocean. George Guice, a mineralogist at the Smithsonian’s National Museum of Natural ...