 | | Journal (article/letter/editorial) | | University of Vienna, Althanstrasse 14, A-1090 Wien, Austria Institut für Mineralogie und Petrographie, University...University of Innsbruck, Innrain 52, A-6020 Innsbruck, Austria a r t i c l e i n f o Article history: Received...al., 2001, modified) and some dated (meta-)pegmatite outcrops. SI = Silvretta; EW = Engadine window; Ötz...models for garnet, biotite, chlorite, staurolite, chloritoid (extended for Mn-solution), phengite, margarite...frequently observed 270–240 Ma ages from (meta-)pegmatite garnet (Fig. 12) probably date the “peak” pegmatoid |  | Eberlei, T., Habler, G., Wegner, W., Schuster, R., Körner, W., Thöni, M., Abart, R. (2015) Rb/Sr isotopic and compositional retentivity of muscovite during deformation. Lithos, 227. 161-178 doi:10.1016/j.lithos.2015.04.007 | Journal (article/letter/editorial) | | A-1090 Vienna, Austria Austrian Geological Survey, Neulinggasse 38, A-1030 Vienna, Austria Department of...University of Vienna, Althanstraße 14, A-1090 Vienna, Austria a r t i c l e i n f o Article history: Received...as to reflect formation during or cooling after pegmatite emplacement. Contrastingly, muscovite fractions...metamorphism, a Permian HT/LP event related with pegmatite formation and finally upper-greenschist facies...1.6 kbar (Habler et al., 2009). The timing of pegmatite emplacement was constrained to 263–280 Ma by Sm–Nd |  | | Book (volume) | | fossils. There are no igneous or metamorphic rock outcrops in Indiana. The four great periods of glaciations... FREMONT COUNTY AREA, all Devonian limestone outcrops, gemstone quality⎯fossil corals and stromatoporoids...the Tri-State District, where Kansas, Missouri and Oklahoma join boundaries. This district is interesting... Logan, Trego, and Wallace counties. Regional outcrops of shale disgorge Selenite crystals. ANDERSON...bodies occurring in Mississippian limestone with outcrops predominantly in the very corner of Kansas⎯chert |  | | Book (volume) | | fossils. There are no igneous or metamorphic rock outcrops in Indiana. The four great periods of glaciations... FREMONT COUNTY AREA, all Devonian limestone outcrops, gemstone quality⎯fossil corals and stromatoporoids...the Tri-State District, where Kansas, Missouri and Oklahoma join boundaries. This district is interesting... Logan, Trego, and Wallace counties. Regional outcrops of shale disgorge Selenite crystals. ANDERSON...bodies occurring in Mississippian limestone with outcrops predominantly in the very corner of Kansas⎯chert |  | | Book (volume) | | ......................258 Missouri – New Lead District Map .........................................................325 New Jersey – Franklin Mining District Map ............................................Texas – Fluorite in the Terlingua Quicksilver District .................................455 Texas – Sulfur..............502 Vermont – Orange County Copper District Site Map ...................................503...Murphrees Valley, as a narrow strip of scattered outcrops about 5 mi. longManganese minerals. CALHOUN |  | | Book (volume) | | Murphrees Valley, as a narrow strip of scattered outcrops about 5 mi. long⎯Manganese minerals. CALHOUN...area⎯Barite. CHEROKEE COUNTY CENTRE, area Miocene outcrops⎯tektites (dark green and dark blue tektites have...of the Louisville and Nashville RR), area pegmatite outcrops⎯Muscovite mica; d SE Region: (a) B.T. Childers...in the United States CLARKE COUNTY AREA, vein outcrops along county roads⎯chert (resembles chalcedony)...bed⎯dark yellow ocher. CLAY COUNTY AREA: c pegmatite outcrops in the mica schists, as large platy books |  | | Book (volume) | | Murphrees Valley, as a narrow strip of scattered outcrops about 5 mi. long⎯Manganese minerals. CALHOUN...area⎯Barite. CHEROKEE COUNTY CENTRE, area Miocene outcrops⎯tektites (dark green and dark blue tektites have...of the Louisville and Nashville RR), area pegmatite outcrops⎯Muscovite mica; d SE Region: (a) B.T. Childers...in the United States CLARKE COUNTY AREA, vein outcrops along county roads⎯chert (resembles chalcedony)...bed⎯dark yellow ocher. CLAY COUNTY AREA: c pegmatite outcrops in the mica schists, as large platy books |  | | Book (volume) | | for gems and gemstones: quartz family minerals, pegmatite crystals, Turquoise, agatized and opalized wood...(b) toward S end of the Pine Nut Mts., area pegmatite outcrops Thulite (pink Zoisite), Topaz; extreme...Silver, Platinum. ELKO COUNTY CARLIN: area pegmatite outcrops in surrounding hillsRose Quartz; nearby...Silver minerals; area gravels, surfaces and outcropsCitrine, Rose Quartz, wonderstone; NW 8 mi....until the 1950’sGold, Lead, Silver; area rock outcropsRose Quartz. This mining dist. was located with |  | | Report (chapter) | | relative abundances of diverse key minerals (chloritoid, staurolite, andalusite, kyanite, fibrolitic...obviously far more efficient than sampling hundreds of outcrops.(Doug Burbank, in Greensfelder 2002, p. 256) ...appearance and increase of index minerals such as chloritoid, staurolite, kyanite, fibrolitic sillimanite...indices vary from 0 to 100. Hbl, hornblende; Cld, chloritoid; St, staurolite; Ky, kyanite; And, andalusite;...represents up to 78% of transparent heavy minerals). Chloritoid occurs only in sand of the Liro River, draining |  | | Journal (article/letter/editorial) | | plagioclase, tourmaline, magnetite, quartz, chloritoid, apatite and columbite-tantalite (AbadOrtega...of one pegmatite body. These nodules are enclaves of the host rocks surrounded by the pegmatite and tex-...Sierra Albarrana area and location of the main pegmatite bodies (modified from Contreras et al. 1983 and...sillimanite-muscovite zone, 8 sillimanite-K-feldspar zone). Pegmatite types (A quartzfeldspar pegmatites, B pegmatites...and epidote). Letters indicate situation of pegmatite outcrops The proportion of cryptocrystalline masses |  | | Book (volume) | | also quarried a rough, porous flintstone from outcrops, especially around McArthur, Vinton Co., for making...Bolivar to Zoar Station, as nodules in limestone outcrops⎯flint. VINTON COUNTY AREA: c Swan Twp., on Upper...McCloud on Rte. 62 to Crater Lake: (a) area basalt outcrops⎯Natrolite; (b) draws, washes, slopes, etc.⎯Quartz...gem Corundum crystals are still gathered from pegmatite exposures in these counties. Mountain stream gravels...States FEASTERVILLE: c area outcrops⎯sunstone; d Triassic rock outcrops: (a) S and SE of Holland Sta |  | | Book | | Mount Malosa, Chilwa alkaline province, Zomba district. "Illite" is the name of a series of incompletely...the 2003 Tucson show. MOROCCO Imilchil area. Outcrops of episyenite and of contact-metamorphic skarn...of rutile (Weerth, 2004). Tonniq Valley, Skardu district, Gilgit-Baltistan [Northern Areas]. Beginning...testing to be hematite. Zagi [Zegi] Mountain, Warsak district, North West Frontier Province. Surface diggings...to 6 cm (2005: 120). Los Remedios mine, Taxco district, Taxco, Guerrero. Ilvaite occurs in the wallrock |  | | Book (volume) | | California, is arguably the most important gem-pegmatite district in North America. Its wealth of tourmalines...Mine in Topsham: both are small open pits in pegmatite. Morrill et al. (l 958) relieves the problem by...specimen obviously from the Red Hill Central Pegmatite #1 quarry, Rumford which is simply labeled "from...allanite as an accessory mineral in an albitite pegmatite from the Dennis Hill area, Litchfield. At the...from Maine pegmatites. All other studied Maine pegmatite garnets are almandine. Almandine of intermediate |  | | Report (issue) | | quarries, pits, rock exposures (road-cuts, rock outcrops) and shorelines. Most of these are shown on locality...area and adjacent Ontario. The Winnipeg River pegmatite field presents a diverse mineral assemblage including...characteristic rusty gossan (weathered pyrrhotite) in rock outcrops serving as the indication of an orebody. Most...41 I/11 Chelmsford (G): 2491 Sudbury, Sudbury District, Sudbury Municipality (O.G.S., 1:50 000) Occurrences...I/10 Capreol (G): 1957-5 Falconbridge Township, District of Sudbury, Ontario (O.G.S., 1:50 000) Wanup |  | | 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...Alt. 16 for 15 to 17 mi. (near Rte. 79), pegmatite outcropsRose Quartz; S along US 385 for 32 mi....Co., all regional side rds., look for limestone outcrops and ridgesFairhill agates; in Bull Moose mine...Spodumene, blue-green Tourmaline; Gayle Royal Flush pegmatite, 5.9 mi. SE Amblygonite. FAIRBURN: NW about |  | | Book | | the heart of the then most prolific metal-mining district of Central Europe. He had grown up with a boy’s... 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 |  | | Report (issue) | | pinacoid {001} is conspicuous. Topaz crystals from pegmatite pockets are commonly etched, and crystals from...from Untersulzbachtal, Hohe Tauern, Salzburg, Austria The projection is down (100). Notice the ABCB...Under their hypothesis, primary A newly opened pegmatite about 2 km from Sibiri on the banks of the Basha...porphyry deposits intermediate in water content, and pegmatite deposits deeper and wetter. However, a study of...Kleine Spitzkoppe, Namibia; Mokrusha Mursinka District, Ural Mountains, Russia; Paprok, Laghman Province |  | | Report (issue) | | . . . . 190 22. Typical gold miner, Oldham district, Nova Scotia.. . . . . . . . . . . . . . . . .... . . . . . 190 23. Waverley, eastern gold district, Nova Scotia.. . . . . . . . . . . . . . . . ....Peggys Cove Sandy Bay, Port Mouton ocGranite pegmatite currences Bayside, Frog Lake, Birchtown Diorite...crinoids, trilobites, and plants. The occurrence outcrops along Highway 1 (Fundy Coastal Drive) at km 9...amount of mining was done intermittently on gypsum outcrops for the production of fertilizer. From 1932 to |  | | Report (issue) | | 3.7 Bassin, at church. Massive white gypsum outcrops at the side of a hill overlooking Bassin. The...Cape headland. Inland, this gypsum-bearing rock outcrops along the slope between the shoreline and the...Bay area was transformed into an active mining district. Between 1870 and 1880, Newfoundland ranked fourteenth...The quartz-prehnite veins occur in the sandstone outcrops on Signal Hill near the entrance to Signal Hill...exposed along the road in the park. 46 These outcrops have been striated, groove, and polished by the |  | | Book | | tonnage is computed from dimensions revealed in outcrops, trenches, workings and drill holes and for which...Birimian outcrops on major road-cuts Field Sheets 122, 125 and 81 (Fig.11) as well as outcrops on minor...Clasto-Tuffaceous Form2tion on his study of small isolated outcrops whereas Dabowski studied both his Argillaceous...Formation on relatively well-exposed and continuous outcrops, each measuring over two kilocetres at Awaso and...the coastal areas, e.g. near Saltpond, over 80 pegmatite bodies occur and are clearly related to the margin |  | | Report (issue) | | on the north facing slope of Galena Hill, Mayo District (R . M . Thompson , 1951 : Am . Mineralogist ...in the Keno Hill - Sourdough Hill area , Mayo District , argentite is associated with native silver and.../ 5 Origina lly described from the Berezovsk district , Ekaterinburg, Ura l Mountains , U . S . S ....from the Silanco and Agaunico mines , Cobal t district (E . W . Nuffield and D . H . Gorman , 1960 :...diffr action pattern of akermanite from the O ka district, Qu ebec , ha ve t h e following spac ings a nd |  | | Journal (issue) | | connected with formation of migmatites. Mica-bearing pegmatite bodies and thin quartz veins developed within...no new data on Ilmenian topazes. However, new pegmatite veins with topaz crystals are being discovered...at the Ilmeny State Reserve, found outcrops of granite pegmatite with beryl crystals in a locality that...earlier known localities dozens of new granite pegmatite outcrops were found there. In addition, an attempt...attempt to grade valuable versus nonvaluable pegmatite veins with respect to the presence of rare metal gem |  | | Book (edition) | | chapter controversial several new chapters, one on Pegmatite Deposits has been introduced to avoid repeating...eles viele oo Sib API a 25s tae eerie es EGE A. a Bei tee Iron by E. C. I. Hammerbeck, G. P. Fourie, A...of some gold mines and prospects in the Letaba District..............cceccceeeues 82 Diagtammaticsection...133 Geological«mapiofithe: Namaqualand: copper district... ..../. 0c .ses 0 cosa ceevcece nosh eeure bes:...the tungsten deposits in the Namaqualand copper district..................0. 229 Section of the titaniferous-vanadiferous |  | | Book | | . . . . 165 180 182 Chapter 5: RADIOACTIVE PEGMATITE DEPOSITS Geological Characteristics of Pegmatites...uranium is dissolved more readily than radium; thus outcrops of radioactive ores rich in pyrite that are weathered...is relatively high, radion1etric assays of such outcrops will be too high as compared to chen1ical assays...(var. cyrtolite). In the Baringer Hill, Texas, pegmatite, Landes ( 1932) noted fissures radiating out 4...in perthite is known fron1 the Grafton Center pegmatite, N.H. (Shaub, 1938) ( Fig. 2.2). Pyrite-uraninite |  | | Book | | Carolina. 4 • r Siwstmt' Old mines and rocky outcrops of the Appalachians are hidden beneath a sea of...good reason, is the Smithsonian, located in the District of Columbia between Maryland and Virginia, where...New Jersey between the Hudson and scenic lake district, rugged mountain parks, and farmlands the Delaware...who have taken such an active interest in this district. The first zinc in the United States was produced...wrote the definitive book on the min erals of the district had to use a primitive black light referred to |
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