 | | Journal (article/letter/editorial) | | Postcard view of the Waukon iron mine, Allamakee County, cia. 1912. John Taylor collection. ARTHUR E ...exposed on the surface. has ;I surprisingly active and rich mineral collecting heritage. Its numerous limestone...gravel pits, strip mines. and rock outcrops are scattered throughout the state and have produced many specimens...Unfortunately. with today’s environmental laws and mine and quarry regulations. the prolific collecting...many collecting opportunities are still available, and new material still comes on the market. Only I small |  | | Book (edition) | | 5H GEM HUNTER'S GUIDE HOW TO FIND AND IDENTIFY GEM MINERALS FOURTH REVISED EDITION INCLUDING A COMPLETE...OF THE BEST HUNTING LOCATIONS WITH 89 DETAIL MAPS AND 8 PAGES OF COLOR PHOTOGRAPHS -»— QAANCHViL I ^/...Revised Edition This latest edition of revised and updated, Gem lists Hunter's Guide, more than a...States, Canada, and Mexico where gems have been and can be found. This is the first and only book to present...information and is designed to lead amateur mineral collectors to America's precious and semipre- cious |  | | Book (edition) | | MARIN COUNTY FREE LIBRARY 3 1111 00289 4184 \ I s Fifth Revised Edition A complete, state-by-state...identify gem minerals and judge their value. More than lOO maps, photographs, and line drawings HP EM...on gem collecting has now been completely revised and expanded to list more than fifteen hundred localities...comprehensive information, and is designed to lead the amateur collector to precious and semiprecious stones...tested digging under the names of the nearest towns and counties. More than fifty maps have been added or |
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