| Acknowledgments |
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xi | |
| Introduction |
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1 | (3) |
| Rockhounding Basics |
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4 | (8) |
| Geology |
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12 | (4) |
| Natural Resources |
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16 | (4) |
| How to Use This Guide |
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20 | (4) |
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24 | (3) |
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1 Wilmington Bringhurst Gabbro |
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27 | (3) |
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30 | (3) |
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3 Woodlawn Quarry Mica and Feldspar |
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33 | (3) |
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4 Brandywine Springs Park Sillimanite |
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36 | (3) |
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5 White Clay Creek Orange Feldspar |
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39 | (3) |
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6 Iron Hill Goethite and Limonite |
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42 | (3) |
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7 Chestnut Hill Boxwork Limonite |
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45 | (3) |
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8 New Castle Battery Park Sea Glass |
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48 | (3) |
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9 Chesapeake & Delaware Canal Belemnites and Exogyra Oysters |
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51 | (4) |
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55 | (4) |
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11 Woodland Beach Sea Glass |
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59 | (3) |
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12 Cape Henlopen Beach Quartz |
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62 | (5) |
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13 Big Elk Creek Orange Feldspar |
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67 | (3) |
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14 Elk Neck Hematitic Conglomerate |
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70 | (3) |
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15 Betterton Beach Sea Glass |
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73 | (3) |
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16 Tolchester Beach Sea Glass |
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76 | (3) |
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17 Octoraro Creek Serpentine |
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79 | (2) |
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18 Conowingo Dam River Rocks |
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81 | (3) |
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19 Black Barren Road Serpentine |
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84 | (2) |
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20 Conowingo Creek--Pilot Road Serpentine |
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86 | (2) |
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21 Conowingo Boat Landing Schist and Micaceous Granitic Rock |
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88 | (3) |
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91 | (3) |
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94 | (2) |
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24 Kilgore Falls Pelitic Schist |
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96 | (3) |
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25 Loch Raven Lower Dam Quarry Albite Pegmatites |
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99 | (4) |
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26 Herring Run Marble, Feldspar, and Tourmaline |
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103 | (3) |
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27 Herring Run River Rocks and Glass |
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106 | (3) |
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28 Robert E. Lee Park Serpentine and Chromite |
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109 | (3) |
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29 Falls Road Serpentine Quarry |
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112 | (3) |
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30 Bare Hills Copper Mine Hornblende Schist--Chalcopyrite |
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115 | (3) |
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31 Gunpowder River Garnet and Crenulated Schist |
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118 | (4) |
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32 Hunt Valley McCormick Road Marble |
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122 | (3) |
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33 Hunt Valley Mall Garnet |
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125 | (2) |
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34 Oregon Ridge Goethite and Marble |
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127 | (2) |
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35 Soldiers Delight Serpentine |
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129 | (4) |
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36 Mineral Hill Mine Malachite and Talc Schist |
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133 | (3) |
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37 Dogwood Creek Feldspar and Mica Schist |
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136 | (3) |
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38 Frost Quarry Albite Feldspar |
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139 | (2) |
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39 Henryton Tunnel Area Feldspar Quarry |
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141 | (3) |
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40 Middle Patuxent Banded Marble and Graphic Granite |
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144 | (2) |
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41 Sykesville Mine Specular Hematite |
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146 | (3) |
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42 Elba Furnace Glassy Slag |
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149 | (3) |
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43 Bowie Siderite and Shark Teeth |
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152 | (4) |
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44 Tarnans Branch Vivianite Concretions |
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156 | (3) |
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45 Bayfront Park Shark Teeth |
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159 | (3) |
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46 Flag Ponds Beach Shark Teeth |
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162 | (4) |
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47 Calvert Cliffs State Park Shark Teeth |
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166 | (2) |
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48 Chancellor Point Beach Quartz |
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168 | (3) |
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49 Point Lookout Beach Quartz |
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171 | (3) |
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50 Catoctin Furnace Glassy Slag and Limonite |
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174 | (3) |
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51 Highway 40 Metarhyolite |
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177 | (2) |
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52 Highway 40 Catoctin Metabasalt |
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179 | (3) |
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53 Highway 355 Frederick Limestone |
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182 | (3) |
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54 Ballenger Creek Road Potomac Marble |
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185 | (2) |
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55 Point of Rocks Goethite and Limonite |
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187 | (3) |
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56 McCoys Ferry Devonian Fossils |
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190 | (3) |
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57 Pecktonville Devonian Brachiopods |
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193 | (3) |
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58 Sandy Mile Road Devonian Brachiopods and Gastropods |
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196 | (3) |
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199 | (3) |
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60 Woodmont Station Devonian Brachiopods |
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202 | (3) |
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61 Corriganville Silurian-Devonian Crinoids and Brachiopods |
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205 | (4) |
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62 Hoffman Hill Strip Mine Pennsylvanian Plant Fossils |
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209 | (2) |
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63 Dawson Devonian Fossils |
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211 | (5) |
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Washington, DC Metropolitan Area |
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64 Muirkirk Clay Pits Dinosaur Park |
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216 | (3) |
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65 Bladensburg Siderite and Limonite |
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219 | (3) |
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66 Wheeler Road Vivianite |
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222 | (3) |
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67 Henson Creek Tributary Fossils |
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225 | (3) |
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68 Fort Washington Gypsum Crystals and Fulgarites |
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228 | (4) |
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69 Piscataway Creek Tributary Turritella and Armored Mud Balls |
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232 | (3) |
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70 Purse State Park Shark Teeth and Turritella Fossils |
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235 | (4) |
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71 Westmoreland State Park Shark Teeth |
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239 | (3) |
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72 Caledon State Park Shark Teeth |
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242 | (2) |
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73 Government Island Sandstone Quarry |
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244 | (3) |
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74 Leesburg Potomac Marble |
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247 | (4) |
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75 Paint Branch Orange Feldspar and Micaceous Gneiss |
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251 | (3) |
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76 Northwest Branch Tributary Garnet and Tourmaline |
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254 | (3) |
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77 Travilah Serpentine Barrens |
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257 | (3) |
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78 Great Falls of the Potomac |
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260 | (3) |
| References Cited |
|
263 | (4) |
| Site index |
|
267 | (3) |
| About the Author |
|
270 | |
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