Quantum mechanical simulations of Earth's lower mantle minerals

The theoretical mineral physics group of Ehime University led by Dr. Taku Tsuchiya has developed high-precision computational techniques for studying Earth and planetary materials based on quantum mechanical theory and reported ...

Where is the greatest risk to our mineral resource supplies?

Policymakers and the U.S. manufacturing sector now have a powerful tool to help them identify which mineral commodities they rely on that are most at risk to supply disruptions, thanks to a new methodology by the U.S. Geological ...

Recently discovered mineral named for LSU professor

A Louisiana State University geology professor now has a scientific namesake—a newly discovered variety of tourmaline. Barbara Dutrow said she's surprised and thrilled by the honor.

Making simulated cosmic dust—in the microwave

Cosmic dust is the key to the chemical evolution of stars, planets, and life itself, but its composition is not well understood, and we can't currently collect samples for analysis. A few examples have arrived on Earth as ...

Rust offers a cheap way to filter arsenic-poisoned water

When water flows deep underground, it often dissolves inorganic substances from mineral deposits in the earth's crust. In many regions, these deposits contain arsenic, a naturally occurring element that is colorless, tasteless ...

Bulgarians' patience runs dry over water crisis

Forced to "live without water, in the 21st century, in a European Union country": Bulgarian Yana Stoyanova is not bemoaning climate change, but the incompetence of the authorities which has left some 100,000 people with an ...

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Mineral

A mineral is a naturally occurring solid formed through geological processes that has a characteristic chemical composition, a highly ordered atomic structure, and specific physical properties. A rock, by comparison, is an aggregate of minerals and/or mineraloids, and need not have a specific chemical composition. Minerals range in composition from pure elements and simple salts to very complex silicates with thousands of known forms. The study of minerals is called mineralogy.

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