Minerals and Rocks of Wyoming |
Contents
Figures Page 1 Principal jade occurrences in Wyoming | 2 |
Fossil fish preserved in the Tertiary Green River Formation | 8 |
Xray diffractometer | 10 |
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Absaroka Mountains agate amphibole andalusite Andesite arsenopyrite basalt blue brown calcite carbonate Casper chalcedony chemical chert cleavage coal Color contain Copper Mountain corundum Creek Crystal Habits crystal system deposits diamonds district Earth's feldspar fibrous Figure fine-grained flame fluoresce Formation formed fracture garnet geologic maps Gneiss gold grains Granite gravity and heft gray Green River Gypsum hardness hematite hexagonal Hills hydrochloric acid identification igneous rocks iron kimberlite kyanite Laramie Range layers Leucite limestone luster magnetic magnetite massive Medicine Bow Mountains metallic metamorphic rocks mined mountain ranges nephrite occur olivine Osterwald oxide pegmatites petrified wood phosphate placer Plate powder Precambrian prismatic prisms pyrite pyroxene quartz quartzite Rock Springs sandstone schist sedimentary rocks serpentine shale Sierra Madre silicate South Pass specific gravity specimens streak sulfide surface tabular Tertiary texture trona U.S. Geological Survey uranium varieties vitreous volcanic rocks Wind River Wyoming Wyoming's wyomingite x-ray yellow Yellowstone