Rocks and Minerals site contents |
| Minerals | |
| Introduction and igneous rocks | |
| Sedimentary rocks | |
| Metamorphic rocks | |
| Related pages including visual glossary entries | |
| Simplified rock classification chart | |
| Naming igneous rocks | |
| Tuff | |
| Basalt | |
| Sediment | |
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| USGS Geology in the Parks home | NPS Park Geology Tour home |
This site is a cooperative endeavor of the
http://www.nature.nps.gov/grd/usgsnps/rxmin/content.html
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