If you’ve ever studied geography, looked at fossils in a museum, or even looked up at a craggy cliffside or a steep mountain, you’ll know that rocks usually take millions of years to form. However, ...

Learn how fossils form through sedimentation and mineralization. Discover types like moulds, casts, and trace fossils in our ...

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.

Forbes contributors publish independent expert analyses and insights. David Bressan is a geologist who covers curiosities about Earth. May 30, 2025, 01:36pm EDT May 30, 2025, 01:59pm EDT Trash and ...