Arrives in 3-7 Business Days
Many people consider Wyoming a wide-open frontier, where new mineral discoveries are made every year. Bulletin 71 was written primarily as a treatise on gemstone and related mineral and rock occurrences in Wyoming. Besides the mineralogist and gemologist, mineral collectors and rock hounds who enjoy hunting for rock and mineral specimens and have some background in mineralogy and geology will find this publication of value. It can best be used in conjunction with the maps shown or referenced in the text.