Travertine is not only a geological wonder but also a popular building material. Its use dates back to ancient Rome, evident ...

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 ...

If you draw with a pencil, you can tell how soft the graphite inside is. Pieces of graphite break off to leave the pencil mark. But can you imagine drawing with a diamond? Diamonds and graphite are ...

DODOMA: STUDENTS from Mpwapwa Secondary School have visited the Geological Museum and laboratories of the Geological Survey ...

What is the rock cycle? There are three types of rocks — igneous, sedimentary, and metamorphic — that have formed over time in the Earth's different layers. A rock can begin as one type and can change ...

Thundereggs look like regular rocks from the outside, but contain intricate and colorful mineral patterns inside — often made ...

Forbes contributors publish independent expert analyses and insights. David Bressan is a geologist who covers curiosities about Earth. The discovery of fossils in graves and in archaeological digs ...

Geologists have come up with an original explanation of how nature may produce an intriguing class of magmatic rocks that are made up of only one type of mineral. Geologists from Wits University in ...