2003 - The Treasure Hunter's Gem Mineral Guides to the Usa Northwest States Where How to Dig Pan and Mine Your Own Gems Minerals (Paperback) ISBN-13: 9780943763378 ISBN-10: 0943763371 Genres: Crafts, Hobbies & Home, Science & Math ? 2003 - The Treasure Hunter's Gem Mineral Guides to the Usa Southwest States Where How to Dig Pan and Mine Your Own Gems Minerals (Paperback) ISBN-13: 9780943763385 ISBN-10: 094376338X Genres: Crafts, Hobbies & Home, Science & Math ? 2003 - The Treasure Hunter's Gem Mineral Guides to the Usa Northeast States Where How to Dig Pan and Mine Your Own Gems Minerals (Paperback) ISBN-13: 9780943763392 ISBN-10: 0943763398 Genre: Science & Math ? |