For experts and armchair enthusiasts like, Rocks and Minerals- A Photographic Field Guide will appeal to anyone interested in uncovering the mysteries of this subject. A general introduction is followed by an introduction to rocks covering the three groups- igneous, metamorphic and sedimentary, plus their formation and occurrence, main characteristics and economic uses. A number of examples from each category will be detailed an illustrated. The second part of the book begins with an introduction to minerals, including gemstones, explaining their classification, occurrence, formation and characteristics, identification and economic uses. This is followed by accounts and images of a wide selection of examples.… (more)
[Introduction] Rocks and minerals are a fundamental part of the earth's crust.
Native elements are free, uncombined elements which are classified into three groups: Metals such as gold, silver, and copper; semimetals such as arsenic and anitmony; and non-metals, including carbon and sulfur.
These rocks also could have originated on planet-forming bodies, called planetesimals.