The Smithsonian Institution Rocks Gallery

The Smithsonian Institution Rocks Gallery
The Smithsonian Institution's National Museum of Natural History offers an interactive and printable web site called "The Dynamic Earth". The site contains a variety of information about rocks and mining, including an interactive rock gallery and a video about how rocks are made into usable products. You can visit the site by following the link above:

A focal point of the exhibit is the "Rocks Build Cities" exhibit, with samples of sand, crushed stone and gravel and descriptions and illustrations of how the materials are used to make asphalt and concrete for roads, sidewalks, buildings and other purposes. The Vulcan Materials Company Foundation was a major contributor to an industry fund-raising effort for the Rocks Gallery.