"We're constantly finding new minerals, because we're exploring areas that might have conditions we didn't know about," Anderson said. There are three main types of rock — igneous, sedimentary ...

Sphalerite is a very cool mineral. It is a beautiful, complex and diverse zinc sulfide (ZnS) mineral that also hosts a ...

For example, marble is created when limestone is pressure-cooked within the earth, causing the minerals that compose the stone to re-form into new crystals. Sedimentary rock is formed by the ...

Sedimentary rocks are made up of tiny broken pieces of rocks, crystals or minerals. They can often contain fossils from when they were formed millions of years ago. Whilst rocks can be strong and ...

Siderite is an iron carbonate mineral. Its presence in sedimentary rocks formed billions of years ago offers evidence that Mars once had a dense atmosphere rich in carbon dioxide, a gas that would ...

"We were surprised to find carbonate minerals here because even the most detailed investigations of the orbital spectroscopy data acquired over these sedimentary rocks were unable to identify ...