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 ...

Discover how rocks, minerals & the rock cycle change your world. Join the Science Trek team to explore rocks and minerals! Discover how the Earth formed, the three types of rocks, the rock cycle, and ...

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