The rockhound is an enthusiastic amateur collector of rocks and minerals, particularly of the more spectacular varieties. This compact volume explains how to classify and identify the commonest types; for selecting minerals, localities where good specimens may be obtained are listed. Collecting equipment is described as well as simple physical and chemical tests for identification, and there is a useful and rather illuminating section devoted to aspects of the law of trespass in different countries. The two final chapters deal with gemstones and the lapidiary's art.