Department of Earth Science and Engineering, Imperial College London, Exhibition Road, London SW7 2AZ, U.K.

Scientists have calculated the Earth to be 4.54 billion years old, with an uncertainty of 50 million years on either side.

Peridot is a striking green gemstone, a variety of the mineral olivine. It has been valued for its vibrant colour and ...

What colour is the moon ... and sometimes you can even get a glimpse of green from rare minerals like olivine. How does the atmosphere change our view? The way we see the Moon can change ...

Completing certain main missions also unlocks new minerals for you to buy from the Sundries Drop as well: Public Bath Is Ready unlocks Olivine, Agate, Quartz, Tourmaline, and Jade for purchase.

Mineralogy is the study of minerals, the building blocks of rocks, which are naturally-occurring, crystalline solids with a set chemical make-up. This includes the study of the chemical ...