 | | Book (volume) | | conditions: the Cumberland Plateau, the Appalachian Valley, the Appalachian Mountains, the Piedmont Plain...pans. Many other gem crystal species occur in pegmatite exposures, such as Aquamarine, Beryl, some Ruby-red...areaAlmandite garnet; (g) harmony Church, area pegmatite outcropsBeryl; (h) Hickory Flat, 2 mi. NE on...mi. region surrounding this town contains many pegmatite dike minesMica minerals, Quartz crystals, Aquamarine...chalcedony, Kyanite, jasper. POWDER SPRINGS, S 2 mi., outcrop on Turner propertyCorundum. CRISP COUNTY CORDELE |  | | Book (volume) | | principally in Devonian limestone exposures which outcrop over much of Iowa, being most typical and best...Hexagonaria corals. The famed Keokuk Geode Beds outcrop in a broad area around the jct. of the Des Moines...Pleistocene ice advances, as far south as the Kaw Valley and the Little Blue river. In this region’s gravel...mi. N of Sun City in Barber Co., all along the valley of Salt Fork Cr., as beds⎯Gypsum. 166 A Location...quarries⎯Gypsum, Calcite, etc. ELLIS COUNTY HAYES, W, in valley of the Smoky Hills R., as massive outcropping beds⎯Niobrara |  | | Book (volume) | | principally in Devonian limestone exposures which outcrop over much of Iowa, being most typical and best...Hexagonaria corals. The famed Keokuk Geode Beds outcrop in a broad area around the jct. of the Des Moines...Pleistocene ice advances, as far south as the Kaw Valley and the Little Blue river. In this region’s gravel...mi. N of Sun City in Barber Co., all along the valley of Salt Fork Cr., as beds⎯Gypsum. 166 A Location...quarries⎯Gypsum, Calcite, etc. ELLIS COUNTY HAYES, W, in valley of the Smoky Hills R., as massive outcropping beds⎯Niobrara |  | | Book (volume) | | which also produced a most remarkable series of pegmatite dikes ranking with those in Maine and Southern...Hills Dist. Includes both Veins and the extensive pegmatite dike exposures and mines. BON HOMME & CHARLES...on US Alt. 16 for 15 to 17 mi. (near Rte. 79), pegmatite outcropsRose Quartz; S along US 385 for 32...Spodumene, blue-green Tourmaline; Gayle Royal Flush pegmatite, 5.9 mi. SE Amblygonite. FAIRBURN: NW about...316, then W to Carter Ranch and S along Pleasant Valley Cr. in Red Canyon, areabanded agate, Jade, jasper |  | | Book | | may know first of all what mountain or hill, what valley or plain, can be prospected most profitably, or... Plagioclase Giant nent Large crystals of Pegmatite Light grains promi- Quartz present Diorite...(distinct crystals in a fine-grained base). Pegmatite A an igneous rock which sometimes takes on the...and water vapor. Under great pressure molten pegmatite material is squeezed into fractures in the overburden...overburden to expose these veinlike or dikelike pegmatite is forms as parallel structures, often concentric |  | | Book (edition) | | of weakness caused by deformation or twinning. pegmatite Very coarse-grained granitic rock representing... Also in Canada, Scotland, England, Sweden, Switzerland, Japan, Tanzania, Madagascar, and New Zealand... Canada; Habachtal, Austria; Rontongranite, Switzerland; and several localities in northern Italy. SELECTED...Hittero and elsewhere in Norway; near Pizbucendro, Switzerland; in the Ilmenskie Mountains, Urals, USSR; and...Mexico; in New Zealand at Camoola Reef, Maratoto Valley, and the Hauraki gold field; Washington County | | | Book (edition) | | of weakness caused by deformation or twinning. pegmatite Very coarse-grained granitic rock representing... Also in Canada, Scotland, England, Sweden, Switzerland, Japan, Tanzania, Madagascar, and New Zealand... Canada; Habachtal, Austria; Rontongranite, Switzerland; and several localities in northern Italy. SELECTED...Hitter6 and elsewhere in Norway; near Pizbucendro, Switzerland; in the IlImenskie Mountains, Urals, USSR; and...Mexico; in New Zealand at Camoola Reef, Maratoto Valley, and the Hauraki gold field; Washington County |
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