Handbook of rocks, minerals, and gemstones - Schumann, Walter (Boston : Houghton Mifflin, 1992)
Spine title: Rocks, minerals & gemstones
Includes bibliographical references (p. 340-341) and index.
Keywords: Rocks -- Identification -- Handbooks, manuals, etc; Minerals -- Identification -- Handbooks, manuals, etc; Precious stones -- Identification -- Handbooks, manuals, etc