There are about 6,000 different types of minerals, but only a couple hundred are gemstones. Learn more about these special minerals and how someone like you can find your own gemstone. Science Trek is ...

Science enthusiasts, mineral lovers and those interested in astronomy alike can find multiple events in Tucson that shine a spotlight on the scientific world. These events include an asteroid sample ...

It’ll be a snap to identify gemstones once Robert Downs finishes his library of spectral fingerprints for all the Earth’s minerals. Downs is almost halfway there. So far, the associate professor of ...