 | | Journal (article/letter/editorial) | | chemistry and Sm–Nd age correlation of magmatic pegmatite garnet overprinted by eclogite-facies metamorphism...University of Vienna, Althanstr. 14, A-1090 Vienna Austria Institute of Mineralogy and Petrography, University...University of Innsbruck, Innrain 52, 6020 Innsbruck, Austria Accepted 17 January 2007 Abstract Meta-pegmatites...in the polymetamorphic Koralpe–Saualpe basement, an Austroalpine unit with eo-Alpine highpressure overprint...relationships with other pegmatite minerals indicate that garnet crystallized during pegmatite emplacement. Whole |  | 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...geochronometer is strongly affected by a net loss of Sr. Lower Sr concentrations of muscovite correlate with higher...as to reflect formation during or cooling after pegmatite emplacement. Contrastingly, muscovite fractions...87Rb/86Sr vs 87Sr/86Sr space. They yield successively lower muscovite–whole rock Rb/Sr apparent ages. We explain |  | | 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...stages of garnet growth, interpreted as (i) relics of an early, pre-Alpine metamorphic event and (ii) newly-grown...fractions is 269.6 ± 6.2 Ma (MSWD = 4.3; n = 9), with an initial Nd isotope composition of εNd(270) = −8.6...pre-kinematic minerals. Reliable geochronological data are an essential prerequisite in unravelling such polyphase |  | | Report (issue) | | ....... 54 Alfredo Petrov • Burmese Tourmaline - An Historical Perspective ........................ 58.... . ......... 68 Maximilian Glas • Pegmatites - An Overview .............70 William B. Simmons • From...19 sapphires, 26 spinels, 25 emeralds, 15 rubies, an aquamarine and 20 pearls. The large (39.5 x 36.5...bedecking the crown, especially the sapphires, are of an exceptional quality. Seven of the sapphires, all...This 24 cm wide "schorl" specimen from Tyrol, Austria was part of the Gigot D'Orcy collection and is |  | | Book | | Elizabeth Queen 5500 Egypt the part is anywhere an beryl deposits, of fine crystal Sinkankas has ...Poisons and Venomous Bites, Pregnancy, 127 Austria, Vision and Diseases of the Epilepsy, 124 Russia...Treatment for Cabochons, Australia, 363 331 Austria, Beryl Carvings, 332 Faceted Gems, and Gems...edge are which contains turquoise, The much an the National stones in their relation to mankind...but I hope that the material included presents an adequate portrait of a mineral whose history |  | Mogessie, A., Hauzenberger, Ch. A., Hoinkes, G., Felfernig, A., Stumpfl, E. F., Bjerg, E. A., Kostadinoff, J. (2000) Genesis of platinum-group minerals in the Las Aguilas mafic-ultramafic rocks, San Luis Province, Argentina: textural, chemical and mineralogical evidence. Mineralogy and Petrology, 68 (1) 85-114 doi:10.1007/s007100050005 | Journal (article/letter/editorial) | | University of Graz, Austria Institute of Geosciences, Mining University of Leoben, Austria 3 Departmento de...dunite, lherzolite, norite, and gabbro, intruded an amphibolite facies basement causing locally granulite...Platin-Arsenide (Sperrylit) wurden in mehreren Bohrkernen der ma®sch-ultrama®schen Intrusion von Las Aguilas, Provinz...amphibolitfazielles Grundgebirge, das in den Randbereichen der Intrusion eine È berpragung zeigt. Platingruppenminerale...uhrenden Gesteinen, die noch zusatzlich angereichert an Buntmetallsul®den, wie Chalkopyrit, Pentlandit und |  | | Book (volume) | | pans. Many other gem crystal species occur in pegmatite exposures, such as Aquamarine, Beryl, some Ruby-red...GRAYSVILLE, SE 1½ mi., in Knox dolomite exposed in an abandoned quarry Barite, Calcite, Fluorite (purple...shark teeth. CHATTOOGA COUNTY GORE, N 6 mi., along lower slopes of Taylor RidgeHalloysite. SUMMERVILLE:...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 |  | | Book (volume) | | considering its age — this could almost be considered an updated version). This is by no means a complete...Minerals are capitalized while rocks have been left lower case. This is the 5th printing and each time updates...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 |  | | Book (volume) | | considering its age — this could almost be considered an updated version). This is by no means a complete...Minerals are capitalized while rocks have been left lower case. This is the 5th printing and each time updates...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 |  | | Book (volume) | | ..............................211 Maine – Mt. Apatite mines Map .............................................................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 |  | | Book (volume) | | (lined with crystals); (b) Hamilton Quarry, the lower Warsaw section at the top of the quarry (see map)...fossils. There are no igneous or metamorphic rock outcrops in Indiana. The four great periods of glaciations... This and adjoining Brown Co. have also produced an astonishing 30 Diamonds over the last century. These...Regional limestone quarries produce some gemmy Apatite, Calcite, Glauconite, Marcasite, Pyrite and Quartz...LOGANSPORT, E 2½ mi., the France Stone Co. quarry⎯Apatite (associated with collophane), Calcite (crystals |  | | Book (volume) | | (lined with crystals); (b) Hamilton Quarry, the lower Warsaw section at the top of the quarry (see map)...fossils. There are no igneous or metamorphic rock outcrops in Indiana. The four great periods of glaciations... This and adjoining Brown Co. have also produced an astonishing 30 Diamonds over the last century. These...Regional limestone quarries produce some gemmy Apatite, Calcite, Glauconite, Marcasite, Pyrite and Quartz...LOGANSPORT, E 2½ mi., the France Stone Co. quarry⎯Apatite (associated with collophane), Calcite (crystals |  | | Book | | Mount Malosa, Chilwa alkaline province, Zomba district. "Illite" is the name of a series of incompletely...COLUMBIA Ice River complex. The Ice River complex is an intrusive body of alkaline igneous rocks where sodalite...ilmenite specimens have come from an unusual calcite vein-dike occurrence with an exposure very near, indeed...2008, when extensive blasting for construction of an extension to High,, ay 5 revealed veins of massive...the 2003 Tucson show. MOROCCO Imilchil area. Outcrops of episyenite and of contact-metamorphic skarn |  | | Journal (article/letter/editorial) | | and, similarly, in the gem gravels of the Mogok district of Burma. Emeralds, especially, were known to...probably knew of pegmatite outcrops but paid no attention to them, and where pegmatite exploration was...such efforts resulted in the production of the pegmatite minerals that we prize so highly, including beryl...larger ions of oxygen. The symmetry of these rings on an atomic structural scale is reflected in the symmetry...megascopic scale. The central space in each ring forms an unbroken channel parallel to the c-axis and is large |  | | Journal (volume) | | . . . . . . . . . . . . . . . . . . . . 14 PEGMATITE OCCURRENCES . .. .. . .........................18 THE PEGMATITE OCCURRENCE OF LUOLAMÄKI . . . . . . . . . . . . . . . . . . . 19 PEGMATITE OCCURENCES...host r ocks in the vicinity of the village of Torro, an area on the boundary between the communes of Somero...to occur in connection with synorogenie rocks. Pegmatite dikes and lumps containing beryl are found mostly...from coarse-grained varieties of granite, i.e., pegmatite occurrences. It was in 1956 that the Geological |  | | Book (volume) | | collecting grounds in the Midwest for gemstone materials. An extensive collecting region of agatized and opalized...all tributary canyons, creeks, and washes, reveal an abundance of gem quality 283 Nebraska petrified...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 |  | | Journal (article/letter/editorial) | | Minerals of the PACOIMA PEGMATITE Los Angeles County, California Downloaded by [New York University]...attract collectors to this southern California pegmatite. WILLIAM P. MOLLER 627 Grove Lane Santa Barbara...UNUSUALLY LARGE ALLANITE crystals occur in a pegmatite that crops out in Pacoima Canyon only a few miles...found irregularly distributed throughout this pegmatite in pods and lenses of perthite. The crystals are...the west end of the pegmatite exposure. Figure 1. Pacoima Canyon pegmatite outcrops, as viewed from west |  | | Journal (issue) | | ......................... 399 by W. E. Wilson Apatite and m uscovite from the Ze Pinto prospect, M inas...Zoned eosphorite from Lavra da Ilha, Taquaral district, M inas Gerais, Brazil ................................................. 418 by J. S. White, Jr. An uncom m on margarite/corundum assem blage from Sterling...p p le m e n t in th is issue). Photo by H arold an d Erica Van Pelt. Copyright 1990 © by the Mineralogical...room. For this project we have also commissioned an English translation of the Latin preface, compiled |  | | Journal (issue) | | ......................... 399 by W. E. Wilson Apatite and m uscovite from the Ze Pinto prospect, M inas...Zoned eosphorite from Lavra da Ilha, Taquaral district, M inas Gerais, Brazil ................................................. 418 by J. S. White, Jr. An uncom m on margarite/corundum assem blage from Sterling...p p le m e n t in th is issue). Photo by H arold an d Erica Van Pelt. Copyright 1990 © by the Mineralogical...room. For this project we have also commissioned an English translation of the Latin preface, compiled |  | | Report (chapter) | | area . Lucy pegmatite. Results of the drill program . ..... . .. . . . Artdon pegmatite Subsurface pegmatite..... . . ... . . Molly and Bendum claim s Deer pegmatite , West Hawk Lake. . . . . . . . . . . . . . ....Lake .. ... . . . ... ..... .. . . . . . Beryl pegmatite north of Telford. 7 7 9 9 12 12 12 15 16 17 17...Lake/Cat Lake areas General statement 19 19 Pegmatite dykes in the Pointe du Bois area (Lac du Bois...Lamprey Falls) Lac du Bois pegmatite K-1 pegmatite . Lucky NO.3 pegmatite Pine claim , Winnipeg River |  | | Report (issue) | | extralapis No. 13: Topas Das prachtvolle Mineral, der lebhafte Edelstein with the permission of Christian...topazes, weighing a total of 3.03 carats on the lower wings. The small stones in the wings, totaling 19...forms desirable collector specimens. The mineral is an aluminum fluorosilicate with the composition Al2SiOiF...pinacoid {001} is conspicuous. Topaz crystals from pegmatite pockets are commonly etched, and crystals from...hydroxyl that form a mixed, close-packed array with an ABCB stacking sequence (graphic page 6). In topaz |  | | Book (volume) | | concerned, Ohio is unique in but a single gemstone, an exceptionally high quality, colorful flint that is...also quarried a rough, porous flintstone from outcrops, especially around McArthur, Vinton Co., for making...limestone outcrops⎯flint. VINTON COUNTY AREA: c Swan Twp., on Upper Mercer horizon exposed along an old rd...townships of Richland (Sec. 1, central part along an abandoned rd.), Wilkesville, Vinton, Clinton and...occurs at many localities in maroon sediments of Lower Permian age, with the greatest concentrations south |  | | Book (volume) | | concerned, Ohio is unique in but a single gemstone, an exceptionally high quality, colorful flint that is...also quarried a rough, porous flintstone from outcrops, especially around McArthur, Vinton Co., for making...limestone outcrops⎯flint. VINTON COUNTY AREA: c Swan Twp., on Upper Mercer horizon exposed along an old rd...townships of Richland (Sec. 1, central part along an abandoned rd.), Wilkesville, Vinton, Clinton and...occurs at many localities in maroon sediments of Lower Permian age, with the greatest concentrations south |  | | Journal (issue) | | reflected and transmitted light. 62 x F I G . 4. An elongated negative crystal in a Burma ruby. Above...doubly refractive crystal with i refractive index lower than 1-764. 118 x J. Geram., 1976, X V , 1 V*...demonstrate that this negative crystal is really grown as an empty cavity. Fig. 6 exhibits a strange inclusion...temperature or to some other cause. I n any case, an obstacle for the growth front was present which partially...100, which when divided into weight in air showed an exact figure for amber as follows : 1 0 8 - 8 = 100 |  | | Report (volume) | | Bulletin 922-T TIN-BEARING PEGMATITES OF THE TINTON DISTRICT LAWRENCE COUNTY, SOUTH DAKOTA A PRELIMINARY REPORT...Oligoclase-quartz-muscovlte pegmatite............ Tourmaline-bearing pegmatite and quartz-tourmaline veins....... Albite-quartz pegmatite.......................... Spodumene-quartz pegmatite...................... lenses................... Mlcrocline-quartz pegmatite...................... Alblte-quartz-muscovite...IV 90. Geologic map and section of the Tinton district, South Dakota................. In pocket 91o Geologic |
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