 | | Book (volume) | | Illinois geology. These measures constitute the Upper Carboniferous system of repeated alterations of...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 |  | | Book (volume) | | Illinois geology. These measures constitute the Upper Carboniferous system of repeated alterations of...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 |  | | 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 rd....mi. region surrounding this town contains many pegmatite dike minesMica minerals, Quartz crystals, Aquamarine...smoky). ATLANTA, Emory University, area pegmatite outcropsQuartz crystals (clear, BARNESVILLE, THOMASTON...areaQuartz crystals. LITHONIA: area quarriesCalcite, Epidote, Fluorite, Garnet, Thulite, Tourmaline, Zeolites; |  | | Book (volume) | | Murphrees Valley, as a narrow strip of scattered outcrops about 5 mi. long⎯Manganese minerals. CALHOUN...prehistoric Indians from lead producing areas of the upper Mississippi Valley. Not a county in Alabama but...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) |  | | Book (volume) | | Murphrees Valley, as a narrow strip of scattered outcrops about 5 mi. long⎯Manganese minerals. CALHOUN...prehistoric Indians from lead producing areas of the upper Mississippi Valley. Not a county in Alabama but...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) |  | | 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 |  | | 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 | | Rocks; Minerals Found in Igneous Rocks; Granite Pegmatite Gems and Minerals; Hydrothermal Mineral Deposits;...find throughout the region, especially in the pegmatite intrusions (dikes) of New England, New Jersey...found in veins, dikes, stream gravels and benches, outcrops, and as "float" over the widespread lower surfaces...the heart of the then most prolific metal-mining district of central Europe, and although he did not enjoy...differing types of mineralizations, not only surface outcrops but deeply buried concentrations. He is trained |  | | Book (volume) | | although excavations in the underlying black, Upper Devonian (New Albany) shales occasionally produces...colored Vanport flint of the Flint Ridge and the Upper Mercer flint exposed in Hocking, Perry, and Coshocton...also quarried a rough, porous flintstone from outcrops, especially around McArthur, Vinton Co., for making...HOCKING COUNTY AREA exposures throughout Co. of the Upper Mercer horizon, commonly represented by black flint...townships of Decatur, Elizabeth, Perry, Symmes, Upper and Washington, as nodules in limestone exposures⎯flint |  | | Book (volume) | | although excavations in the underlying black, Upper Devonian (New Albany) shales occasionally produces...colored Vanport flint of the Flint Ridge and the Upper Mercer flint exposed in Hocking, Perry, and Coshocton...also quarried a rough, porous flintstone from outcrops, especially around McArthur, Vinton Co., for making...HOCKING COUNTY AREA exposures throughout Co. of the Upper Mercer horizon, commonly represented by black flint...townships of Decatur, Elizabeth, Perry, Symmes, Upper and Washington, as nodules in limestone exposures⎯flint |  | | 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 |  | | Journal (article/letter/editorial) | | Figure 1: Lustrous epidote is 3.8 centimeters in length. From the J.H. Alexander collection, Denver Museum...PIDOTE from the Calumet Iron Mine in the Turret District, Salida, Colorado The Calumet iron mine is one...mineral localities in Colorado. Some of the best epidote ever discovered in Colorado has come from this... and uralite pseudomorphs. The association of epidote and quartz crystals was described as early as 1877...County, Colorado. It is located in the Turret district within the San Isabel National Forest, in the |  | | Journal (article/letter/editorial) | | BUTTE PEGMATITE BELT Silver Bow and Jefferson Counties, Montana E618 By R A Y M O N D L A S M A N I...added to my collection from the Butte, Montana Pegmatite Beit. During boyhood days, I took an occa sional...on dis play compare with the best from other pegmatite regions, such as Colorado, New England, etc.)...introducing in de creasing order: albite, oligoclase, epidote, pyrite, sphene, and—in two single areas molybdenite...Pohndorf Amethyst Pegmatite. These areas can be clearly located on the Jefferson Ranger District Map, available |  | | Report (issue) | | museum began paleontologic fieldwork in Madagascar (upper Permian fauna and Jurassic and Cretaceous saurians...collection at the Kristallmuseum in Riedenburg, Germany The current status of these studies is presented...Annandale, VA Dr. Gi.inther A. Neumeier, Munich, Germany Dr. William B. Simmons, New Orleans, LA Gloria...CT Layout Designer Maximilian Glas, Starnberg, Germany Licensed edition in the English language of Lithographer...Schottenheim Munich, Germany with the permission of Christian Weise Verlag, Munich, Germany © 2001 by Lapis |  | | 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) | | the early 1900's, the original Encampment mining district was an important base-metal producer, encompassing...encompassing more than 2,500 mines and prospects. The district comprised 25,000 mi2, including the study area...Mountains and south into Colorado. Within the district, massive suifide deposits occur in Archean rocks...presently accepted Encampment mining district. Total production of the district is not known, but it probably...Wyoming, nearly all from the original Encampment district (Hausel, 1986). In southern Wyoming, small mines |  | | Journal (article/letter/editorial) | | Sinai, Egypt, monazite, rare-earth elements, pegmatite, black sand deposits, granite, provenance. Introduction...ilmenite, rutile, garnet, amphibole, pyroxene, epidote, zircon, apatite, monazite, tourmaline, staurolite...Mineralogy and Geodynamics, University of Tübingen, Germany. The original XRF instrument and measurement techniques...The Blue Nile and Atbara River drain, in their upper courses, mildly alkaline to tholeiitic basalts and...by augite, with minor opaques, hornblende and epidote. Atbara levee deposits are dominated by volcanic |  | | Journal (issue) | | Lieber Heidelberg, W. Germany Olaf Medenbach Ruhr Universitat Bochum Bochum, W. Germany Eric Offermann Arlesheim...Country Australia Canada China Czechoslovakia France Germany Japan Italy Mexico Namibia USSR USA Zaire Total...explorers to the native copper deposits of western Upper Michigan, but it wasn’t until about 1844 that the...at the southwest end of the district. The great native copper belt of Upper Michigan occurs in a series...conglomerate. The major lodes or mines in the district were designated as amygdaloidal or conglomerate |  | | 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...yellow fluorapatite, as well as good specimens of epidote, pyroxene, magnetite, titanite and other species...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 |  | | Book | | . . . . 165 180 182 Chapter 5: RADIOACTIVE PEGMATITE DEPOSITS Geological Characteristics of Pegmatites...thorium, which aTe strongly concentrated in the upper lithosphere, are markedly oxyphile elements occwTing...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 |  | | 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 (edition) | | PARADISE I Bancroft and Region l Old Mines Quarries Outcrops Roadcuts '· Maps • .• ·' f J : .... !...numerous abandoned mines, quanies, roadcuts and outcrops that contain dozens of varieties of minerals....body of granite and amphibolite. Bancroft and District Mineral Collecting Guidebook, p. 12 AMER ICAN...to the mine. amphibole, calcite, chalcopyrite, epidote, dark brown garnet, m gnetite, pyrite, pyroxene...once-successful mine is the pit. Bancroft and District Mineral Collecting Guidebook, p. 34; Touring the |  | | Report (volume) | | similar to the main part of the body. This type of pegmatite is of limited economic value. About 25 percent...center of the pegmatite. As many as five distinct units, or zones, parallel to the pegmatite wall-rock contact...contact have been noted in an individual pegmatite. In some pegmatites fracture-filling units of quartz...mica of the rock. The average beryl content of pegmatite rock in the Middletown area is probably between... extends into 'Hartford County. Access to the district is provided by a close network of hard-surface |  | | Journal (article/letter/editorial) | | http://www.tandfonline.com/loi/tigr20 Gabbro-pegmatite ophiolite complex of Armenian Soviet Socialist...cite this article: S.B. Abovyan (1965) Gabbro-pegmatite ophiolite complex of Armenian Soviet Socialist...tandfonline.com/ page/terms-and-conditions Gabbro-pegmatite ophiolite complex of Armenian Soviet Socialist... Contact characteristics of certain types of pegmatite veins are noted, such as the mesocratic veins...the leucocratic veins. It is noted that gabbro-pegmatite composition is dominated by plagioclase feldspars |  | Marquez-Zavalia, M. F., Galliski, M. A., Cerny, P., Chapman, R. (2012) AN ASSEMBLAGE OF BISMUTH-RICH, TELLURIUM-BEARING MINERALS IN THE EL QUEMADO GRANITIC PEGMATITE, NEVADOS DE PALERMO, SALTA, ARGENTINA. The Canadian Mineralogist, 50 (6) 1489-1498 doi:10.3749/canmin.50.6.1489 | Journal (article/letter/editorial) | | TELLURIUM-BEARING MINERALS IN THE EL QUEMADO GRANITIC PEGMATITE, NEVADOS DE PALERMO, SALTA, ARGENTINA María Florencia...tellurium-bearing minerals in the El Quemado pegmatite, Salta, Argentina, represents late-stage mineralization...spodumene-subtype, rare-element class granitic pegmatite. The minerals occur in an irregular, volumetrically...pressure in the range 2–3 kbar. Keywords: granitic pegmatite, bismuth, bismuthinite, emplectite, hodrušite...isolated grains of tetradymite were described in a pegmatite of probable NYF affiliation at Cerro Blanco, Córdoba |
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