This famous book takes you on an extensive gem and mineral collecting tour of Colorado, revealing the interesting places where Nature has stored her treasures.

This updated and expanded second edition features over 90 locations, including 27 new sites, where collectors can explore the mineral, gem and fossil treasures

This collector's guide takes you on an extensive gem and mineral tour of the most strongly mineralized areas of the world.

Rocks, Gems, and Minerals is a field guide to more than 100 of the most common and sought-after rocks, gems, and minerals hidden throughout North America. Conve