When was the last time you picked up a rock to throw it, skip it across water, or simply to admire its color? Rocks are everywhere. Billions of years ago, as erupted and moutains burst from the ground, many different kinds of rocks were formed. Rocks contain important clues about the events that shaped the Earth. Geologists study them to look for these clues and to piece together the 4.5 billion years that make up our planet's history.
Rocks are an aggregate, or combination, of two or more minerals. They come in all shapes, sizes, textures and weights. Geologists classify rocks by the process that formed them.
Rocks are an important part of our world. This virtual tour will focus on how rocks are created, the different types of rock, characteristics of rocks, and rocks in everyday life. Come along as we explore the fascinating world of rocks. Learn how you can become a rockhound!