"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 ...

Sedimentary rock covers 75-80% of the ... of common rocks that make up the soil parent material (Table 1). Primary minerals form at elevated temperatures from cooling magma during the original ...

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 precipitated from water are ... The emerging sense of chronology provided by their global-scale mineral and terrain mapping is a large step forward in decoding an important ...

5 Cementation In the final process of sedimentary rock formation, some of the minerals in the sediment harden and form a kind of cement which sticks the grains of the rock together. Look through ...

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 ...