There are over 5,000 known types of minerals. Just a few minerals make up most of the rocks we see, though: feldspars, amphiboles, quartz, olivine, garnet, micas, calcite, and pyroxenes.

A compound is a substance that contains two or more elements close elementA pure substance that is made from only one type of atom ... For example, the rock malachite is mostly made of the ...

The characteristics of the rocks that hold fossils can be as informative as the fossils themselves. There are three main types of rock: igneous rock, metamorphic rock, and sedimentary rock. Almost all ...

the genesis of accessory minerals such as REE phosphates in all rock types, the origins of economic concentrations of minerals and petroleum, the make-up of the atmosphere, ocean and life on Earth ...

This is a beginner's guide to identifying UK rock types. The guide has two main sections: background information on the structure and forces affecting the Earth in relation to rock formation a more ...