 | | Journal (article/letter/editorial) | | CLASSIC PEGMATITE OCCURRENCES IN Delaware County, Pennsylvania JOSEPH J . PETERS Department of Mineral...Pennsylvania, near Philadelphia (Figure 1). The quarries were opened shortly after the War of Independence...outstanding specimens: Leiper's Upper and Lower Avondale quarries, Avondale; Leiper's quarry, Springfield Township;...Pennsylvania showing location of Delnware County. The quarries are located within the rectangu lar box (see Figure...Ownership Thomas Leiper (Figure 3), owner of the quarries at Springfield and Avondale, was born in Strathaven |  | | Book (edition) | | of the Tilly Foster Mine . . The Branchville Pegmatite............................. On the Luminescent...consequently, the texture of the pegmatite is much coarser. In a very coarse pegmatite a small crystal of one mineral...difference in crystal size that characterizes the pegmatite. Pegmatites are thought to have been formed deep...bending it around the ends of the pegmatite; consequently, the pegmatite assumes either a lense-shaped structure...Pegmatitic contacts are often times distinct where the pegmatite meets the mica schist: If the pegmatitic intrusion |  | | Book (volume) | | 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...COUNTY smoky). ATLANTA, Emory University, area pegmatite outcropsQuartz crystals (clear, BARNESVILLE...Stone Mt.), areaQuartz crystals. LITHONIA: area quarriesCalcite, Epidote, Fluorite, Garnet, Thulite, Tourmaline |  | | Book (volume) | | California, is arguably the most important gem-pegmatite district in North America. Its wealth of tourmalines...to any from Madagascar, Afghanistan, Russia, or Brazil. Certainly, only the best Maine gemstones are in...cassiterite crystals of Resplendor, Minas Gerais, Brazil, better than those from the Harvard quarry in Greenwood...morganites of Cerro de Urucum, Galileia, Minas Gerais, Brazil or from the Pala Chief mine, Pala, California,...concern specimens from Mount Apatite. There are many quarries on this hill but most collectors, unaware of this |  | | Book (volume) | | City Geode Location WARSAW, area rd. cuts, pits quarries, gravels, banks along regional creeks and streams...area⎯tripoli. VERMILION COUNTY DANVILLE, area quarries in dark shale⎯Marcasite replacement of marine...marine fossils. WILL COUNTY LEMONT, area quarries⎯glistening Quartz replacement fossils. WILMINGTON, regional...Pyrite, Selenite and Sphalerite. Regional limestone quarries produce some gemmy Apatite, Calcite, Glauconite...Siderite can also be found in regional limestone quarries. ALLEN COUNTY FORT WAYNE: c area farms, as glacial |  | | Book (volume) | | City Geode Location WARSAW, area rd. cuts, pits quarries, gravels, banks along regional creeks and streams...area⎯tripoli. VERMILION COUNTY DANVILLE, area quarries in dark shale⎯Marcasite replacement of marine...marine fossils. WILL COUNTY LEMONT, area quarries⎯glistening Quartz replacement fossils. WILMINGTON, regional...Pyrite, Selenite and Sphalerite. Regional limestone quarries produce some gemmy Apatite, Calcite, Glauconite...Siderite can also be found in regional limestone quarries. ALLEN COUNTY FORT WAYNE: c area farms, as glacial |  | | Book | | Rocks; Minerals Found in Igneous Rocks; Granite Pegmatite Gems and Minerals; Hydrothermal Mineral Deposits;...delving beneath the surface or looking into nearby quarries, road cuts, and bluffs beyond the immediate boundaries...• • -. ... ' -- Jay Ellis Ransom . RocK QUARRIES. The best place f-:)f hunting minerals, crystals...find throughout the region, especially in the pegmatite intrusions (dikes) of New England, New Jersey...to produce veins, stringers, ore bodies, and pegmatite dikes ( when later erosion has exposed such filled |  | | Book (volume) | | Perry . ......................... 129 The New1y Quarries .......................................................... 315 Duane L. Leavitt The Bennett Pegmatite, Oxford County, Maine . ........................first visit to the tourmaline-bearing granite pegmatite at Mount Mica in 1952 and Gene eventually completed...thesis on the famous tourmalinebearing Himalaya pegmatite at Mesa Grande, San Diego County, California....where, through a translator, he was advising pegmatite miners about recovering useful minerals and began |  | | Report (volume) | | lnstituto Brasileiro de Geografia. Rio de Janeiro, Brazil. Boston Soc. Civil Engineers Jour. Boston, Mass...Radcliffe, Dennis. Geology of the Oxford beryl pegmatite mine, Troup County, Georgia [abs.]: Georgia Acad...08230 Banks, Harold H., Jr.; Melson, William G. Saponite from the Mid-Atlantic Ridge, Iat 22° N. [ abs... Mineral deposits of the central Connecticut pegmatite district, Trip F-6 in Guidebook for field trips...Conserv. Cong., I st, Sao Paulo. Brazil, 1966, Proc.: Sao Paulo, Brazil, Sao Paulo Ministerio da Agricultura |  | | Book | | quartzofeldspathic gneiss, schist, amphibolite and pegmatite, with the ore minerals (davidite-brannerite-uraninite)...fertilizer surveys as that of Smidt et al. (2011a) in Brazil. Here, the mean P2O5, Cd and U content was 30.1%...They are intruded by numerous dikes of granite, pegmatite and aplite, which is well observable in Kamenne...Both localities belong to numerous Pisek pegmatite quarries, which were mined for feldspar and rose quartz...(2010) Younger postectonic monazite in the Pisek pegmatite. J S Boh Mus Ces Bud Nat Sci 50: 26 Sorption |
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