Contains over 4,000 individual mineral species descriptions with links and an image library.

From Virginia Energy

From the USGS

Contains worldwide data on minerals, mineral collecting, mineral localities and other mineralogical information.

From the Geology Department at the College of William and Mary

The Significant Earthquake Database contains information on destructive earthquakes from 2150 B.C. to the present. Provides a tectonic summary, felt report, and casualty summary.

From the National Parks Service

Use the map or park name to find a summary of the geodiversity of a national park.

From USGS

Find information about your U.S. State.

From the National Park Service.

Provides scientific stewardship, products, and services for geophysical data from the Sun to the Earth and Earth's sea floor and solid earth environment, including Earth observations from space.

A web-based data management system for geochemical and petrological sample-based data.

From USGS.