 | DRUGUET, ELENA, CASTRO, ANTONIO, CHICHORRO, MARTIM, PEREIRA, M. FRANCISCO, FERNÁNDEZ, CARLOS (2014) Zircon geochronology of intrusive rocks from Cap de Creus, Eastern Pyrenees. Geological Magazine, 151 (6) 1095-1114 doi:10.1017/s0016756814000041 | Journal (article/letter/editorial) | | Autònoma de Barcelona, 08193 Bellaterra, Barcelona, Spain ‡UA Petrología Experimental, CSIC-Universidad de...Experimentales, Campus de El Carmen, 21071 Huelva, Spain §GEOBIOTEC, FCT, Universidade Nova de Lisboa, Quinta...Universidad de Huelva, Campus de El Carmen, 21071 Huelva, Spain (Received 6 November 2013; accepted 20 January...8 ± 3.8 Ma. A syntectonic granodiorite from the Roses pluton in the southern area of lowest metamorphic...intrusions in the migmatite complexes and the pegmatite dyke swarm In the high-strain and high-grade |  | Van Lichtervelde, Marieke, Grand’Homme, Alexis, de Saint-Blanquat, Michel, Olivier, Philippe, Gerdes, Axel, Paquette, Jean-Louis, Melgarejo, Joan Carles, Druguet, Elena, Alfonso, Pura (2017) U-Pb geochronology on zircon and columbite-group minerals of the Cap de Creus pegmatites, NE Spain. Mineralogy and Petrology, 111 (1) 1-21 doi:10.1007/s00710-016-0455-1 | Journal (article/letter/editorial) | | columbite-group minerals of the Cap de Creus pegmatites, NE Spain Marieke Van Lichtervelde 1 & Alexis Grand’Homme...the different pegmatitic pulses. In a type III pegmatite where zircon and CGM are co-genetically associated...C/ Martí i Franquès s/n, 08028 Barcelona, Catalonia, Spain 6 Departament de Geologia, Universitat Autònoma...de Barcelona, 08193 Bellaterra (Barcelona), Catalonia, Spain 7 Departament d’Enginyeria Minera i Recursos...Manresa, 61–73, 08240 Manresa, Spain The Cap de Creus peninsula (NE Spain) in the easternmost end of the |  | Alfonso, P., Melgarejo, J. C., Yusta, I., Velasco, F. (2003) GEOCHEMISTRY OF FELDSPARS AND MUSCOVITE IN GRANITIC PEGMATITE FROM THE CAP DE CREUS FIELD, CATALONIA, SPAIN. The Canadian Mineralogist, 41 (1) 103-116 doi:10.2113/gscanmin.41.1.103 | Journal (article/letter/editorial) | | MUSCOVITE IN GRANITIC PEGMATITE FROM THE CAP DE CREUS FIELD, CATALONIA, SPAIN PURA ALFONSO§ and JOAN...Barcelona, C/ Martí Franquès s/n, E–08028 Barcelona, Spain IÑAKI YUSTA AND FRANCISCO VELASCO Departamento...Vasco, Apdo 644, E–48080 Bilbao, Spain ABSTRACT The Cap de Creus pegmatite field exhibits a well-defined...well-defined regional zonation of four types of granitic pegmatite: barren Kfeldspar-rich pegmatites (type I), b...content, relative to K-feldspar, with increasing pegmatite evolution. Type-I microcline-rich pegmatites have |  | | Journal (article/letter/editorial) | | IN THE ZONED RARE-ELEMENT PEGMATITE FIELD AT CAP DE CREUS, CATALONIA, SPAIN Pura ALFONSO§ Escola Politècnica...Bases de Manresa 61–73, E–08242 Manresa, Barcelona, Spain Joan Carles MELGAREJO Departament de Cristal•lografia...Barcelona, Spain Abstract The Cap de Creus LCT granitic pegmatites, in Catalonia, northeastern Spain, belong...inclusions have been studied in all these types of pegmatite to determine the nature of the fluids involved...formed albite veins and circulated throughout the pegmatite, owing to the development of a network of fractures |  | | Journal (issue) | | Continued on p. 239 Articles The Jaguaragu pegmatite, Minas Gerais, Brazil ..........................Cassedanne & J. N. Alves Mineralogy of the Bennett pegmatite, Oxford County, Maine ............................................ 185 by B. M. England Copper roses from the Rose mine, near San Lorenzo, New Mexico...silicate, minasgeraisite. OCATION The Jaguaragu pegmatite is situated in the Piracicaba river valley a tributary...o r •jSjo de Janeiro Sao Paulo IISTORY The pegmatite deposit known today as Jaguaragu was first located |  | | Report (chapter) | | history in a syntectonic pluton. The case of the Roses granodiorite (Cap de Creus, Eastern Pyrenees) J...Bellaterra, Barcelona, Spain ( e - m a i k jordi.carreras@uab.es) Abstract: The Roses granodiorite is a Variscan...separated in time by the emplacement of aplite-pegmatite dykes. Time of dyke emplacement is thought to...ranges between one and two orders of magnitude. The Roses granodiorite is thought to be a synkinematically...1980; Saillant 1982; Delaperri6re et al. 1994). The Roses and Rodes massifs are two synkinematically emplaced |  | | Book (volume) | | and E of the Louisville and Nashville RR), area pegmatite outcropsMuscovite mica; SE Region: (a) B.T...a beddark yellow ocher. CLAY COUNTY AREA: pegmatite outcrops in the mica schists, as large platy books...crystals; (e) Coosa and Tallapoosa R. drainage area pegmatite outcrops and numerous old minesMuscovite mica...Rte. 46, starting 1½ mi. E of town: numerous pegmatite outcrops in area bordered by Crooked Cr. (S) and...center of NE¼NW¼Sec. 21, T. 17 S, R. 10 E, in pegmatitecrystals of Garnet, Kyanite and Quartz in hornblende |  | | Book (volume) | | and E of the Louisville and Nashville RR), area pegmatite outcrops⎯Muscovite mica; d SE Region: (a) B.T...a bed⎯dark yellow ocher. CLAY COUNTY AREA: c pegmatite outcrops in the mica schists, as large platy books...crystals; (e) Coosa and Tallapoosa R. drainage area pegmatite outcrops and numerous old mines⎯Muscovite mica...Rte. 46, starting 1½ mi. E of town: c numerous pegmatite outcrops in area bordered by Crooked Cr. (S) and...center of NE¼NW¼Sec. 21, T. 17 S, R. 10 E, in pegmatite⎯crystals of Garnet, Kyanite and Quartz in hornblende |  | | Book (volume) | | and E of the Louisville and Nashville RR), area pegmatite outcrops⎯Muscovite mica; d SE Region: (a) B.T...a bed⎯dark yellow ocher. CLAY COUNTY AREA: c pegmatite outcrops in the mica schists, as large platy books...crystals; (e) Coosa and Tallapoosa R. drainage area pegmatite outcrops and numerous old mines⎯Muscovite mica...Rte. 46, starting 1½ mi. E of town: c numerous pegmatite outcrops in area bordered by Crooked Cr. (S) and...center of NE¼NW¼Sec. 21, T. 17 S, R. 10 E, in pegmatite⎯crystals of Garnet, Kyanite and Quartz in hornblende |  | | Journal (article/letter/editorial) | | Austria Nb-Ta-Minerals from the Cap de Creus pegmatite field, eastern Pyrenees: distribution and geochemical...i Dip6sits Minerals, Universitat de Barcelona, Spain 2Department of Geosciences, Penn State University...mineralogy facilitate distinction of four main pegmatite types at the eastern end of the Pyrenees. Three...trend, with similar enrichment toward the late pegmatite units; a single-crystal trend, with zoning related...expected for a beryl-columbite pegmatite type. In a single pegmatite, the evolution depends on the simultaneous |  | | Journal (article/letter/editorial) | | stopped to collect specimens of malachite in a pegmatite which had been blasted through during construction...at the contact between an otherwise ordinary pegmatite and soft schist. There were solid masses of uraninite...uraninite which I'd ever seen from a United States pegmatite." CONNECTICUT—In his letter, dated Jan. 15, 1956...columnar white mineral from the contact between pegmatite and schist at the Slocum quarry, in East Hampton...Harper Co., Okla., we have a number of selenite "roses ' (clusters of selenite xls) that vary in color |  | | Journal (issue) | | Blauwet Louisville, Colorado Miguel Calvo Zaragoza, Spain Joe Polityka Staten Island, NY Jeffrey A. Scovil...L. Bowling, R. Noore & T. Ledford Alpine “iron roses” . . . . . . . . . . . . . . . . . . . . . . . ...Alain Martaud • • • Saturday: Irv Brown Day: Pegmatite Mineral Collection beginning at 10am in the lobby...the Piedmont. The deposit is definitely not a pegmatite. The area geology has historically been reported...36, November–December, 2005 Alpine “Iron Roses” Thomas Moore 3750 E. Via Palomita #15201 Tucson |  | | Journal (article/letter/editorial) | | perhaps best known for its gypsum crystals and barite roses, Oklahoma also boasts a variety of other species...collectors also know of the reddish barite sand roses, the best of which occur near Noble and Norman,...barite (veins, nodules, claystone concretions and roses, not all at each locality), aragonite (fluorescent...sec.9, T.3N, R.15W, Cambrian-age Quanah Granite pegmatite and gabbro: bornite, chalcopyrite, copper, cuprite...just W of Meers, sec.5, T.3N, R.l3W, granitic pegmatite: amphibole, biotite, chlorite, epidote, hypersthene |  | | Journal (article/letter/editorial) | | Idaho, rough xls of black tourmaline occur in pegmatite. ILLINOIS—Robert Kissick, 7140 Theodore PL, St...by the miners. Samarskite, as you know, is a pegmatite mineral and we were not aware, in any case, that...looking for rocks. I was collecting miniature barite roses at a locality in Logan County, northwest of Guthrie...hill. Sure enough, the ants had found some tiny roses no bigger than a match head and perfectly formed...small bottle. "Oklahoma has all sizes of barite roses from a cabbage head on down. The largest in this |  | | Book | | amethyst. Another rich source of minerals is the pegmatite. Pegmatites are areas of coarse-grained rock,...arranged in the form of rosettes (e.g. the 'desert roses' produced by gypsum and barytes). As noted above...igneous rocks, contact-metamor¬ phosed rocks and pegmatite dykes, and river gravels. The only source of sherry-brown...usually short and virtually tabular. Found in pegmatite dykes and alluvial deposits. Much of the gem-quality...with pronounced vertical furrowing. Sources A pegmatite mineral, found chiefly in the San Pedro and Pala |  | | Journal (article/letter/editorial) | | immediate field trip to the dumps of the Strickland pegmatite where London discovered he had a real knack for...early study of fluid inclusions in the Tanco pegmatite in Manitoba led to a fruitful professional collaboration...quartz in Oklahoma and was once “king” of the barite roses (London 2008b). He has consistently found pockets...2013). A pegmatite researcher and collector, London has worked to invigorate the Pegmatite Interest Group...special publication 10. ———. 2008b. The barite roses of Oklahoma. Mineralogical Record 39 (4): 277–92 |  | | Journal (issue) | | cavities. The best contained hematite, some as small roses up to 3 mm. Un- Hydraulic Fig. 1 Hematite rose...acceptable specimens with a trimmer at home. The roses, which were not abundant. were easier to trim. Most... I would have liked to have seen more of che pegmatite and the structure of ic chough. Mining of the...don't have che opportunity to visit an active pegmatite mining operacion; this video will show you the... Continued from page 2 on them. Some hematite roses (Fig. I) had a white. opaque, mineral mtached that |  | | Journal (issue) | | MONTSERRAT IN SPAIN—See Page © 11 Gem Cutters Guild of America FEATURING SHOW PIECE PEBBLE...A I 2 nd M A L : \ g f g a 9 f £ f if f Alt 9 \ 9 ting } ( xX} f x g = 747 GREAT D H forew...happened to rise fron the neighboring plains of Catalonia, | quote Jose Maria de Sagarra, student the region...previous ages had invaded all the central part of Catalonia, became a vast lagoon bound by enormous crags...abruptly from the plains within 40 miles of Barcelona, Spain. By means of a “lift,” visitors may travel to a |  | | Report (issue) | | Shaeffer Hollow Granite ________________________ Roses Mill pluton ________________________________ Ch...ferrodiorites ______________ Liquid immiscibility in the Roses Mill and Turkey Mountain plutons and the origin... Outcrop of folded Shaeffer Hollow Granite and Roses Mill dikes ___________________________ 14. Outcrop...15. Road cut at Roses Mill _____________________________________________ __ 16. Roses Mill specimen showing...____________________________ _ 17. Anorthosite xenolith in Roses Mill unit _________________________________________ |  | | Journal (issue) | | . . . 267 by S. Makki & M. F. Makki The barite roses of Oklahoma . . . . . . . . . . . . . . . . . ....E-Mail: stuwil@aol.com Wilensky photo The Barite Roses of Oklahoma a i on on ConocoPhillips School of Geology...and traceable to source as the Oklahoma barite roses, also known as rose rocks and barite sand rosettes...public collections around the world, the barite roses with sand inclusions from Oklahoma are cataloged...as rocks. This classification is correct—barite roses are mineral specimens, not rocks, because the shapes |  | | Journal (article/letter/editorial) | | afternoon. The abstracts follow. A REDISCOVERED PEGMATITE IN THE STETTIN COMPLEX, WAUSAU SYENITE COMPLEX...exposed a relatively large aplite/pegmatite dike. This dike may be a pegmatite originally reported by Weidman...upper and lower intermediate zones of aplite and pegmatite bands, and a coarse pegmatitic core zone. 184...relative to nearby pyrochlore. Pegmatite bands and the core pegmatite zone consist largely of microcline...bastnäsite-(Ce), the dominant LREEmineral in pegmatite zones. Intergrown monazite-(Ce)/bastnäsite-(Ce) |  | | Book (edition) | | of the gem-rich areas known as pegmatites. A pegmatite is a dike of exceptionally coarse quartz and feldspar...could form. The most productive sections of a pegmatite lie near the core of the thickest parts, where...the quartz segregations in the feldspar mass of pegmatite dikes. Garnets and corundum settle with other... cleavage luster Well-developed crystals, Pegmatite often banded by twinning Transparent to Conchoidal...Yellow crystals Conchoidal; basal cleavage Pegmatite, metamorphic and ore asparagus rocks, stone |  | | Book | | hematire) may occasionally form rosettes ('desert roses'). Dendrites are moss-like limonite or pyrolusite...and South America, and the copper of Rio Tinto, Spain. Frequently, deposits of finely divided sulphides...Shikoku, Japan. Right Massive cinnabar ore. Almaden, Spain. 53 way as those present in rocks without any...Realgar and orpiment Abiwe Massive realgar. Leon, Spain. Center Foliated orpiment. &low Prismatic, striated...sapphire with curved faces. Ceylon. PLATE 12 66 Spain, but most came from the lead-zinc deposits of Laurion |  | | Book | | a cloth The handle in a coarse- known as pegmatite. Prospectors look for pieces of quartz and mica...mica, then trace the try to long narrow pegmatite bodies, called changes in the pattern and feldspar...the rock are signs of minerals. Shown here are pegmatite and veins of quartz which often indicate the presence...famous pseudohexagonal twins from the province in Spain that gave the mineral its name. These resemble a...Calcite. 2 Aragonite, a pseudohex- agonal twin. Spain. 3 Sanidine feldspar. 4 Cassiterite tin (tin |  | | Journal (article/letter/editorial) | | specimens in place for exhibiting. CHALCEDONY ROSES - Cover in dishpan of cold water. Add I cup detergent...Heat; cool overnight. Scrub with bristle brush. Put roses, few at a time in pure muriatic acid until bubbling...(Dissolving out of matrix) See R&M* 7/68 p. 492. DESERT ROSES-Immerse in Axion solution 12 hrs. Brush and rinse...the breakdown can damage them. See also Galena. PEGMATITE MINERALS - To remove kaolin crust soak in Coca-Cola |
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