Rocks and Minerals Defining Minerals :

by Anne Egger, Ph.D.

Further Exploration

Minerals InformationUSGS - Find information about mineral resources mined in your region. See how mining and extraction have changed over time in the United States and beyond, and how minerals are used today.

Mineralogy DatabaseA comprehensive and in-depth database of minerals, including pictures, chemical formulas, animations of atomic structure, listings of physical and chemical properties of minerals, and links to other sites with mineral data.

Common Minerals and Their UsesMineral Information Institute - A list of the most commonly used minerals, from aluminum to zirconium, including pictures.

Introduction to MineralsTulane - Stephan A. Nelson's introduction to minerals, written for an introduction to geology class.


Georgius Agricola

Georgius Agricola


De Re MetallicaA complete set of images that originally appeared as woodcuts in Agricola's 1550 classic book on mining.

News & Events

Mineral in Mars 'Berries' adds to water storyNASA/JPL

Minerals are the key to deep earthquakesScience Daily

Current Science NewsNews from around the world of science.


Google ScholarGoogle - Research database allows searching of the scholarly literature.


Watch minerals growFlash animation from W.W. Norton showing crystal growth.

Thus minerals have differences which we observe by color, taste, odor, place of origin, natural strength and weakness, shape, form, and size.

- Georgius Agricola, 1484-1555

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