 | | Journal (article/letter/editorial) | | Skarns of the Andorra Granite (Central Pyrenees, Spain): Sulphur Isotope Data* E. Cardellach ~, C. Ayora...Autonoma de Barcelona, Spain 2 Institut de Ci6ncies de la Terra, CSIC, Barcelona, Spain 3Departament de Cristallografia...i Dipbsits Minerals, Universitat de Barcelona, Spain With 4 Figures Received July 11, 1991; accepted...Devonian limestones. Only three of these, the hedenbergite, pyrrhotite and arsenopyrite skarns, are sulphide-bearing...~ + 10%o) and of galena and sphalerite from hedenbergite skarns (~34S ~ + 7%0) correlate with the higher |  | | Journal (article/letter/editorial) | | Cinco Villas metasomatic rocks, Western Pyrenees (Spain) A. PESQUERA AND F. VELASCO Department of Mineralogy...University of the Basque Country, PO Box 644, Bilbao, Spain ABSTRACT. In the Artikutza area, near the contact...the southern Aya granite, skarns containing hedenbergite, grandite, epidote, quartz, calcite, actinolite...is the second reported occurrence of ilvaite in Spain; spectral reflectances,colour values. Vickers hardness...KEVWORDS: ilvaite, skarns, reflectivity, Aya granite, Spain. E Ag LI ER papers have referred to the occurrence |  | | Journal (article/letter/editorial) | | of the Los Santos Scheelite Skarn, Salamanca, NW Spain SUSANA MARIA TIMĂN SĂNCHEZ,â MARIA CANDELAS MORO...Salamanca, Plaza de Los CaĂdos, s/n, 37008 Salamanca, Spain Abstract The Los Santos scheelite skarn deposit...located in the province of Salamanca, northwest Spain, occurs in meter-thick strata-bound but irregular...made up of a thick, almost monomineral mass of hedenbergite (Hd82-87), accompanied by grossular (Grs53-73)...influx of a surface-derived fluid. Introduction IN SPAIN, as elsewhere in Western Europe, skarn deposits |  | | Journal (article/letter/editorial) | | related to the Andorra granite (central Pyrenees, Spain) R.L. Romer a'* A. Soler z 1 Laboratoire de G6ochronologie...Minerals, Universitat de Barcelona, E-08028 Barcelona, Spain Received: 20 December 1993/Accepted: 28 September...late-kinematic Hercynian granites in the central Pyrenees of Spain. Geological setting of the deposits The structure...Tungsten-bearing wollastonite-vesuvianiteskams Hedenbergite skams ~9 [ ~ Ordovician (Caradocian to Asghillian)...(2) wollastonite-vesuvianite __+tungsten, (3) hedenbergite, (4) pyrrhotite, (5)arsenopyrite, and (6)magnetite |  | | Journal (article/letter/editorial) | | Gold-bearing hedenbergite skarns from the SW contact of the Andorra granite (Central Pyrenees, Spain) A. Soler...Cienciesde la Terra (J. Almera), CSIC, Barcelona, Spain Received: December 1989/Accepted: August 1, 1990...1980). On the other hand, reduced skarns with hedenbergite and sulphides as the dominant minerals have...contained in the series. Geological setting The hedenbergite and pyrrhotite skarns are situated along the... The S 60 STUDIED AREA Pyrrhotite skarn Hedenbergite skarn Granodiorite Contact Metamorphism Limestones |  | | Journal (article/letter/editorial) | | contact of the Maladeta batholith, Central Pyrenees (Spain) JORDI DELGADO MARTIÌN1,* and ALBERT SOLER I GIL2...CorunÌa, Campus de ElvinÌa s/n, 15192, A CorunÌa, Spain *Corresponding author, e-mail: jdelgado@udc.es 2...Barcelona, C/ MartÄ±Ì i FranqueÌs s/n, 08028 Barcelona, Spain Abstract: Two well developed hedenbergitic, ilvaite-bearing...contact of the Maladeta batholith (Central Pyrenees, Spain) have been studied in order to determine their physico-chemical...the existence of several dozens of reduced, hedenbergite-type tungsten-bearing skarns (cf. Einaudi et |  | Tornos, F., Galindo, C., Crespo, J. L., Spiro, B. F. (2008) GEOCHEMISTRY AND ORIGIN OF CALCIC TUNGSTEN-BEARING SKARNS, LOS SANTOS, CENTRAL IBERIAN ZONE, SPAIN. The Canadian Mineralogist, 46 (1) 87-109 doi:10.3749/canmin.46.1.87 | Journal (article/letter/editorial) | | TUNGSTEN-BEARING SKARNS, LOS SANTOS, CENTRAL IBERIAN ZONE, SPAIN Fernando TORNOS§ Instituto GeolĂłgico y Minero de...de España, c/Azafranal 48, Eâ37001 Salamanca, Spain Carmen GALINDO Departmento de PetrologĂa y GeoquĂmica...Eâ28040 Madrid, Spain JosĂ© Luis CRESPO SIEMCALSA, c/Incas, 5, Eâ47008 Valladolid, Spain Baruch F. SPIRO...leucogranite, Spanish Central System, Los Santos deposit, Spain. Sommaire La skarn de Los Santos, mĂ©sozonale, calcique...w-bearing skarns, los santos, central iberian zone, spain imposed hydrothermal (Frei et al. 1998) or supergene |  | | Journal (article/letter/editorial) | | de EspanĂa, c/Azafranal 48-50, 37001 Salamanca, Spain e-mail: ftaitge@iponet.es A. Delgado EstacioĂn Experimental...ZaidÔà n, c/Profesor Albareda, 1, 18008 Granada, Spain C. Casquet ĂĄ C. Galindo DepartmentoĂ of PetrologĂ”Ă...Universidad Complutense de Madrid, 28040 Madrid, Spain hydrothermal ÂŻuids were external to the igneous...structural control Zn-(W) calcic distal skarns ?? Hedenbergite-rich skarn in dolomitic marbles interbedded...plagioclase and a combination of maÂźc minerals: hedenbergite to aegirinic augite pyroxene, hastingsite amphibole |  | Saez, R., Nocete, F., Nieto, J. M., Capitan, M. A., Rovira, S. (2003) THE EXTRACTIVE METALLURGY OF COPPER FROM CABEZO JURE, HUELVA, SPAIN: CHEMICAL AND MINERALOGICAL STUDY OF SLAGS DATED TO THE THIRD MILLENIUM B.C. The Canadian Mineralogist, 41 (3) 627-638 doi:10.2113/gscanmin.41.3.627 | Journal (article/letter/editorial) | | METALLURGY OF COPPER FROM CABEZO JURĂ, HUELVA, SPAIN: CHEMICAL AND MINERALOGICAL STUDY OF SLAGS DATED...Huelva, Av. Fuerzas Armadas s/n, E-21071 Huelva, Spain FRANCISCO NOCETE Departamento de Historia I, Universidad...Huelva, Av. Fuerzas Armadas s/n, E-21071 Huelva, Spain JOSĂ M. NIETO AND M. ĂNGELES CAPITĂN Departamento...Huelva, Av. Fuerzas Armadas s/n, E-21071 Huelva, Spain SALVADOR ROVIRA Museo ArqueolĂłgico Nacional, Departamento...de ConservaciĂłn, C/ Serrano 13, E-28001Madrid, Spain ABSTRACT The archeological excavations at Cabezo |  | Canet, C., Alfonso, P., Melgarejo, J.-C., Jorge, S. (2003) V-RICH MINERALS IN CONTACT-METAMORPHOSED SILURIAN SEDEX DEPOSITS IN THE POBLET AREA, SOUTHWESTERN CATALONIA, SPAIN. The Canadian Mineralogist, 41 (3) 561-579 doi:10.2113/gscanmin.41.3.561 | Journal (article/letter/editorial) | | DEPOSITS IN THE POBLET AREA, SOUTHWESTERN CATALONIA, SPAIN CARLES CANET§ Departamento de Recursos Naturales...Universitat de Barcelona, Eâ08028 Barcelona, Catalonia, Spain SUSANA JORGE Departamento de DidĂĄcticas EspecĂficas...(EducaciĂłn), C/ Villadiego s/n, Eâ09001 Burgos, Spain ABSTRACT The Lower Llandoverian metasedimentary...of the Prades Mountains, southwestern Catalonia, Spain, consist of interstratified anorthite-rich beds...shale, Silurian, contact metamorphism, Catalonia, Spain. SOMMAIRE Les roches mĂ©tasĂ©dimentaires du Silurien |  | Min, Kyoungwon, Reiners, Peter W., Wolff, John A., Mundil, Roland, Winters, R. Lee (2006) (UâTh)/He dating of volcanic phenocrysts with high-UâTh inclusions, Jemez Volcanic Field, New Mexico. Chemical Geology, 227 (3) 223-235 doi:10.1016/j.chemgeo.2005.10.006 | Journal (article/letter/editorial) | | Abstract We measured (UâTh)/He ages of fayalite and hedenbergite phenocrysts with britholite and chevkinite inclusions...fayalite (21 non-abraded + 15 abraded) and 13 hedenbergite (7 non-abraded + 6 abraded) phenocrysts, and...samples are virtually unity. The fayalite and hedenbergite crystals yield mean ages of 1.60 F 0.10 Ma (S...(UâTh)/He dating; Bandelier Tuff; Fayalite; Hedenbergite; Britholite inclusion; Chevkinite inclusion...peralkaline rhyolitic ignimbrites from Gran Canaria, Spain (Troll et al., 2003); chevkinite in quartz, feldspar |  | Cepedal, A., Fuertes-Fuente, M., MartĂn-Izard, A., GonzĂĄlez-Nistal, S., RodrĂguez-Pevida, L. (2006) Tellurides, selenides and Bi-mineral assemblages from the RĂo Narcea Gold Belt, Asturias, Spain: genetic implications in CuâAu and Au skarns. Mineralogy and Petrology, 87 (3) 277-304 doi:10.1007/s00710-006-0127-7 | Journal (article/letter/editorial) | | assemblages from the RıÌo Narcea Gold Belt, Asturias, Spain: genetic implications in CuâAu and Au skarns A....2 Department of Geology, University of Oviedo, Spain RıÌo Narcea Gold Mines Received April 11, 2005;...the presence of andradite (Adr70 100) and hedenbergite (Hd70â97). This Fe-rich pyroxene continued to... calcite, K-feldspar, apatite and titanite. Hedenbergite is locally altered to babingtonite, a hydrated...(Gr71â85). The retrograde mineralogy consists of hedenbergite-rich pyroxene Genetic implications in CuâAu |  | | Journal (article/letter/editorial) | | ArinteiroandBamanearSantiago de Compostela, northwestern Spain, taketheir ore from an extensive horizonof disseminated...km eastof Santiago de Compostela in northwestern Spain(Fig.1).Bothminesderivetheir Geologic Setting orefroma...1689 1690 PATRICK J. WILLIAMS area of survey SPAIN __'PORTUGAL 0 km 3 iii --- I Polymetamorphic...mapsmadebyRioTintoPatifioS.A.) ARINTEIRO-BAMA Cu DEPOSITS. SPAIN 1691 +___ apatite +__ sulfiderocksare interlayeredwith...clase + quartz Hedenbergite-grossularite-hornblende-epidotecarbonate Hedenbergite-grossularite-quartz-epidote |  | Bonev, I. K., Vassileva, R. D., Zotov, N., Kouzmanov, K. (2005) Manganilvaite, CaFe2+Fe3+(Mn,Fe2+)(Si2O7)O(OH), a new mineral species of the ilvaite group, from PbâZn skarn deposits in the Rhodope Mountains, Bulgaria. The Canadian Mineralogist, 43 (3) 1027-1042 doi:10.2113/gscanmin.43.3.1027 | Journal (article/letter/editorial) | | closely associated with Mn-rich clinopyroxene (hedenbergiteâjohannsenite) ± rhodonite, and with the products...formed as a replacement product after manganoan hedenbergite in the skarn. Mineralogically, the two districts...extremely Mn-rich clinopyroxenes (manganoan hedenbergite to end-member johannsenite) in fibroradial to...10 cm along the c axis. It is associated with hedenbergite, garnet, hematite, magnetite, and small amounts...(Beran 1980, Bonazzi et al. 2001) and Artikutza, Spain (Pesquera & Velasco 1986). However, specific differences |  | Hayes, Sarah M., White, Scott A., Thompson, Thomas L., Maier, Raina M., Chorover, Jon (2009) Changes in lead and zinc lability during weathering-induced acidification of desert mine tailings: Coupling chemical and micro-scale analyses. Applied Geochemistry, 24 (12) 2234-2245 doi:10.1016/j.apgeochem.2009.09.010 | Journal (article/letter/editorial) | | Cu-containing pyrite tailings in the Rio Tinto region of Spain (Hudson-Edwards et al., 1999), in arid regions of...Chile (Dold and Fontbote, 2001) and southeastern Spain (Wray, 1998; Navarro et al., 2004). Associated weathering...Abbreviation Detection methoda andradite axinite hedenbergite johannsenite orthoclase quartz chalcophanite...(Q), orthoclase (O), jarosite (J), gypsum (G), hedenbergite (H), johannsenite (N), Zn-talc (T), axinite...extraction include: quartz (Q), orthoclase (O), hedenbergite (H), johannsenite (N), Zn-talc (T), axinite |  | | Journal (article/letter/editorial) | | Joan R., et al) ll-12 1934 Vonsenite, Europe, Spain, Badajoz (Lopez Ruiz, J., et al) 1l-12 2149 Wakefi...877 Chain silicates, pyroxene group Diopside, hedenbergite, johannsenite (Rutstein, Martin 5., et al.)...chemical analysis, x-ray diffraction analysis, Spain, Badajoz ll-12 2149 (Lopez Ruiz, 1., et al) Carbonates...) tt-12 2OS3 Wollastonite, phase equilibria, hedenbergite, synthesis, solid solution (Rutstein,Martin...distribution, Idaho (Hietanen, Anna.) t-2 234 Diopside, hedenbergite,johannsenite, synthetic, spectroscopy (Rutstein |  | Akiska, S., Demirela, G., Sayili, S. (2013) Geology, mineralogy and the Pb, S isotope study of the Kalkım Pb-Zn ± Cu deposits, Biga Peninsula, NW Turkey. Journal of GEOsciences, 58 (4) 379-396 | Journal (article/letter/editorial) | | composition. The pyroxene minerals are manganiferous hedenbergite, johannsenite and diopside. The Mn/Fe ratios...amount of up to 20â25 vol. % The johannseniteâhedenbergite pyroxenes are found (Fig. 8b). While some sphalerite...Magnetite pseudomorphs of johannseniteâ Epidote hedenbergite. In addition, chlo- ActinoliteâTremolite ritization...to the johannseniteâ Sphalerite Chalcopyrite hedenbergite. Galena Hematite Quartz-II Fig. 6 The paragenesis...fillings (XPL). c â Coarse-grained johannseniteâhedenbergite forming a zone of 5 meters long in the HDYU |  | GarcĂa-Casco, Antonio, RodrĂguez Vega, A., CĂĄrdenas PĂĄrraga, J., Iturralde-Vinent, M. A., LĂĄzaro, C., Blanco Quintero, I., Rojas Agramonte, Y., Kröner, A., NĂșñez Cambra, K., MillĂĄn, G., Torres-RoldĂĄn, R. L., Carrasquilla, S. (2009) A new jadeitite jade locality (Sierra del Convento, Cuba): first report and some petrological and archeological implications. Contributions to Mineralogy and Petrology, 158 (1) 1-16 doi:10.1007/s00410-008-0367-0 | Journal (article/letter/editorial) | | de Granada, Avda Fuentenueva sn, 18002 Granada, Spain e-mail: agcasco@ugr.es A. RodrıÌguez Vega Y. Rojas...de Granada, Avda Fuentenueva sn, 18002 Granada, Spain M. A. Iturralde-Vinent Museo Nacional de Historia...solution model in the system jadeiteâdiopsideâhedenbergiteâacmite of Green et al. (2007). Textures and...diopside solid solution with minor contribution of hedenbergite and acmite components. The jadeite, quadrilateral...jadeiteâdiopside solid solution with minor contribution of hedenbergite and acmite components, but the Fe3?/(Fe3??Fe2 |  | | Journal (article/letter/editorial) | | Modified from Myers (1994). The mole percent hedenbergite content of pyroxene was determined by electron...recrystallized calcite, Ft = ferro-actinolite, Hd = hedenbergite, Il = ilvaite, Po = pyrrhotite, Qz = quartz...recrystallized calcite, Ft = ferro-actinolite, Hd = hedenbergite, Il = ilvaite, Po = pyrrhotite, Qz = quartz...textural relations, it appears to be later than hedenbergite and magnetite. This ilvaite contains high total...At the Artikutza Fe skarn in Western Pyrenees, Spain, ilvaite is present in monomineralic lenses or bands |  | | Journal (article/letter/editorial) | | Universidad de Las Palmas, 35017 La Palmas Gran Canaria, Spain the magmas had already crystallised, differentiated...Contrib Mineral Petrol (2015) 170:54 diopside hedenbergite n= 574 augite pigeonite clinoenstatite clinoferrosilite...clinoferrosilite En Fs diopside hedenbergite n= 406 augite pigeonite clinoenstatite clinoferrosilite...clinoferrosilite Fs En diopside hedenbergite n=94 have similar compositions to the products of the second phase...thermobarometry formulations are based on jadeitediopside-hedenbergite exchange for temperature estimates and jadeite |  | | Journal (article/letter/editorial) | | contact aureole of the Aguablanca CuâNiâPGE deposit, Spain ClĂ©ment Ganino · Nicholas T. Arndt · Catherine Chauvel...Ajalvir Km. 4, 28850 Torrejon de Ardoz â Madrid, Spain carbon dioxide degassing during contact metamorphism...up to 13 % of small equant grains of diopside-hedenbergite which are associated with epidote (~25 %) and...others are foliated. The proportion of diopside-hedenbergite decreases with distance from the intrusion,...(~1 mm) and contain calcic garnet, diopside-hedenbergite, feldspar chlorite, sphene (AGU19 in Fig. 4b) |  | | Journal (article/letter/editorial) | | clinopyroxene lies close to the join diopside-hedenbergite (Table 2). Clinopyroxene associated with ilvaite...6CaFeSi206 + 4Fe304 + 3H20 = 6CaFe3Si208(OH) + 89 hedenbergite magnetite (1) ilvaite 26CaFeSi206 + 8Ca3Fe2Si3Olz...8Ca3Fe2Si3Olz + 12Mg3Si2Os(OH)4 hedenbergite andradite serpentine = 14CaFe3Si2Os(OH) + 36CaMgSi206 + 17H20...6Ca3Fe2Si3012 + 9CaFeSi206 + 89 serpentine andradite hedenbergite (3) TABLE 1. Representative electron microprobe...Xai and Xhed: mole fractions of diopside and hedenbergite of clinopyroxene, respectively. ILVAITE FROM |  | | Catalog/List | | terminated 45, 00 016 ANTIMONY- Montril, Granada, Spain. Extremely rich: bright metallic plates and veins...58x27x25 75,00 023 BARYTES x - Almaden, Cuidad Real, Spain. A single terminated twinned white xl with inclusions...ARAGONITE - Rocabruna Mine, Brugues Gaba, Barcelona, Spain. Very rich whitish cor aloidal masses of brushite...Barranca de las Granatillas, Cordoba, }1Jar, meria, Spain. Rich blue nodul~r masses to 26 with brilliant red...TN. Rare. DOLOMITE variety TERUELITE x - Teruel, Spain. A black translucent bi-terminated single xl. 23x11x8 |  | | Journal (article/letter/editorial) | | synthesis, solid solution with diopside and hedenbergite, opt., cell-dimensions, 216; Rockall, opt.,...from montebrasite, 4r4. Amblygonite mine, Caceres, Spain, montebrasite, 414. Amelia County, Virginia, albite...Blende, Algeria, Austria, Congo, France, Greece Spain, Yugoslavia, cathodoluminescence, trace elements...India, anal., opt., 497. Cabo Ortagal, Galicia, Spain, omphacite, 6I. Calcite, effect of concentration...Canzoccoli, Italy, idocrase, 343Carmelita mine, Caceres, Spain, montebrasite, 414. Catophorite, Greenland, anal |  | | Journal (article/letter/editorial) | | DATA FOR VONSENITEFROM BURGUILLOSDEL CERRO,BADAJOZ,SPAIN J. Loex,z Rurz eNt P. Sar,vaoon Sarvauon, Institwto...Facultad de Ciencias (3", Pabell6n), Madlid. 3 (Spain). Alsrnlcr A chemical analysis and X-ray crystallographic...crystallographic Burguillos del Cerro, Badajoz, Spain. data are given for vonsenite from The samples used...VoNSENITE FRCnr BURqJILLOS DEL CERRO, BADAJOZ, SPAIN z -l Fe203 2e.rr 30.90 A1203 0.22 FeO 55...within the iron ore, together with magnetite and hedenbergite. Chemical analyses of vonsenite are given in |
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Coto San Guillermo, Jerez de Caballeros, Badajoz, Extremadura, Spain