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 ...

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

From the air you breathe to the dirt under your feet, you can’t escape carbon. This element is a key building block of life as we know it, and it can be found throughout the planet in various forms.

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 ...

Sedimentary rocks are made up of pieces of older rocks (igneous, metamorphic, and sedimentary) and organic remains (shells, bone, etc.). When rocks break apart from erosion they are transported by ...

Despite seeming like a relatively stable place, the Earth's surface has changed dramatically over the past 4.6 billion years. Mountains have been built and eroded, continents and oceans have moved ...

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 ...

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