Colorado Gem Trails and Mineral Guide |
Contents
Preface | 13 |
History of Colorado Gems | 20 |
Western Colorado | 26 |
Copyright | |
9 other sections not shown
Common terms and phrases
agate albite amazonstone American Mineralogist barite beryl biotite brown Canon City Canyon cavities Chaffee County collecting Colo color Colorado Gem Colorado Springs colorless Continuing log Crystal Peak Denver deposit described Devils Head dinosaur dumps east feet feldspar fluorite fork garnet gate Gems and Minerals Geological Survey Bulletin Geological Survey Professional gravel Gulch Gunnison Hartsel highway Hill inches jasper Journal of Science locality MAPS Topographic maps Mesa microcline microcline feldspar miles mineral collectors mining Mount Antero muscovite mica National forests National Monument occur opal Opal Hill Park pegmatite Peters Dome petrified wood phenakite Pikes Peak granite pink quarry rado ridge road Rocks and Minerals Royal Gorge Ruby Mountain Salida San Isabel San Juan schist Scientific Society Proceedings Segment smoky quartz specimens Survey Bulletin 1114 Survey Professional Paper topaz tourmaline travertine Turn left Turn right U. S. Geological Survey uranium veins