Hoffman's rockhound guide
Subtitle: a complete how-to-do-it guide on equipment, grit, polish and steps on rock hunting, gold panning, tumbling gems, gem identification, jewelry making
By: Charles and Margaret Hoffman, Bert Webber, indexer.
Contributors: Hoffman, Margaret, 1907-; Webber, Bert.
Publisher: Webb Research Group
Published: 1991
Place of publication: Medford, OR
Language: eng
Number of pages: 76
Subjects: Precious stones -- Collection and preservation.; Grinding and polishing.; Jewelry making.
Notes: Includes index.