A compound is a substance that contains two or more elements close elementA pure substance that is made from only one type of ... of sedimentary rock formation, some of the minerals in the ...

Chalcedonies include many types of cryptocrystalline quartz gems ... are made of clusters or mixtures of minerals, and minerals and rocks affect landform development and form natural resources ...

Curious Kids is a series for children of all ages. If you have a question you’d like an expert to answer, send it to ...

Primary minerals form at elevated temperatures from cooling magma during the original solidification of rock or during metamorphism, and they are usually derived from igneous and metamorphic rocks ...

Some minerals in rocks and organic matter (e.g., wood, bones, and shells) can contain radioactive isotopes. The abundances of parent and daughter isotopes in a sample can be measured and used to ...

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 ...

There would be no bright and colorful fireworks without rocks and minerals. A firework is produced by launching a shell containing fuel and a color mix high into the air, where it explodes.