 | | Journal (article/letter/editorial) | | Mineralogia e Petrografia dell'Universit?l di Bologna, Italy Chlorites from Italian Granitoid Rocks Mirella...Appendix I Sample 1M Mergozzo, Monte Montorfano, Novara, hercynic dei Laghi batholith. The "green" granite...lamellae (Gallitelli, 1938). Sample 2LC La Colma, Alzo, Novara, hercynic dei Laghi batholith. The granite host...modal composition: microcline perthite = 22.5%; albite = 41%; muscovite = 2.5%; chlorite = 31%; sphene...intrusive complex. The host rock is a "medium grained albite granite" and "texture is holocrystalline, moderately |  | Pinarelli, Laura, Moro, Aldo Del, Boriani, Attilio, Caironi, Valeria (2002) Sr,Nd isotope evidence for an enriched mantle component in the origins of the Hercynian gabbro-granite series of the ''Serie dei Laghi'' (Southern Alps, NW Italy) European Journal of Mineralogy, 14 (2) 403-415 doi:10.1127/0935-1221/2002/0014-0403 | Journal (article/letter/editorial) | | series of the “Serie dei Laghi” (Southern Alps, NW Italy) LAURA PINARELLI 1*, ALDO DEL MORO2, ATTILIO BORIANI3...GeochimicaApplicata, CNR, Via La Pira 4, I-50121 Firenze, Italy *Corresponding author: e-mail: lapina@csmga.fi.cnr...Geochimica Isotopica, CNR, Via Alfieri, 1, I-56010 Pisa, Italy 3 Dipartimento di Scienze della Terra, Università...Studi di Milano, Via Botticelli 23, I-20133 Milano, Italy Abstract: In the “Serie dei Laghi” of the Southwestern...a: Montorfano; b: Baveno-Mottarone; c: Quarna; d: Alzo-Roccapietra; e: M. Zuccaro; f: Valsesia; g: Sacromonte |  | | Journal (article/letter/editorial) | | chlorite (Kurata, 1972). It is well known that the AlzO 3 content of phengite increases with metamorphic...different periods is present in the Dora Maira Nappe, Italy. However, textural relations among phengite formed...studied samples were collected from the garnet, albite-biotite and oligoclasebiotite zones of the Asemigawa...hornblende Grt-1 Garnet in albite porphyroblast Grt-2 Garnet in matrix Pl Rim of albite porphyroblast Act Retrograde...WRB-1 Retrograde Prograde minerals SiO 2 TiO2 AlzO 3 Fe203 FeO MnO MgO CaO NazO K20 Total n= Grtl |  | | Journal (article/letter/editorial) | | described t h e first specimen of native arsenic i n Italy, found on the mountain of C o r n s dei Darden,...Properties of Albite. By A. DES CLOIZEAUX (Zeit. Tiryst. nlrin ., 10, 6 2 8 4 3 1 ) .-Although albite has, of...small crystals from Calvados, red masses from Piedmont, white masses from the Mer de Glace a t Chamauni...Morongoze, and small white masses from S. Marcel and Piedmont. Variations from the normal optical characters...characters were shown hy the following varieties of albite :-Moonstone from Mineral Hi11, greyishgreen masses |  | | Journal (article/letter/editorial) | | rocks of the Pyrenees. From my own observations in Italy in 1881, I could not doubt the correctness of these...as to the crystalline terranes of the North of Italy. For this I thank you with all my heart, and demand...those of Elba, of Baveno, of Mont Orfano, and of Alzo. etc.— although characterized by the beauty of their...their crystals of orthoclase, are rich in albite. I have cited apenninite, which will be new to you,...gneiss. Neri, in his sections in north-western Italy, distinguishes above the ophiolitic or pietre verdi |  | | Journal (article/letter/editorial) | | Lucanian Apennines, Maritime Alps and Calabria (Italy) Luciano 1 Istituto z Istituto 3 Istituto Cortesogno... I-16132 Genova, Italy di Mineralogia, Universit~ di Genova, 1-16132 Genova, Italy di Scienze della Terra...Terra, Universit~ di Udine, 1-33100 Udine, Italy Abstract. In the Ligurian Apennines and the Brianzonese...Maritime Alps (Northern Italy), and in the Lucanian Apennines and Calabria (Southern Italy), pumpellyite formed...prehnite-pumpellyite, pumpellyite-actinolite, lawsonite-albite and blueschist facies. Pumpellyite from rocks belonging |  | Johnsen, Ole, Gault, Robert A., Grice, Joel D., Ercit, T. Scott (1999) Khomyakovite and manganokhomyakovite, two new members of the eudialyte group from Mont Saint-Hilaire, Quebec, Canada. The Canadian Mineralogist, 37 (4) 893-899 | Journal (article/letter/editorial) | | titanite, and for manganokhomyakovite:aegirine,albite, analcime,annite,cerussite,galena,kupletskite,...MgO 0.04, CaO 10.42,MnO 1 63, FeO 4 33, SrO 8.45,AlzO:0.09, LazO30.21,Ce2O30.18, SiO243.70, TiO2 011,2rO2...91-4.38),FeO 2.58 (2.40-2.65),SrO 9.17 (8.63-9.63),AlzO: 0.02 (0.00-0 05), LauO: 0.12 (O 004.2'7), Ce2O30...titanite, et pour la manganokhomyakovite,aegirine, albite, analcime, annite, c6russite, galbne, kupletskite...almost 150 km eastward from Oka to Megantic in the province of Quebec.Mont Saint-Hilaire has become well known |  | | Journal (article/letter/editorial) | | 05 0.75 56.24 94.30 9.37 0.73 17.81 3.24 MgO AlzO ~ SiO 2 K20 CaO 6.65 3.26 70.24 0.99 8.33...69 0.22 99.3 99.9 A1~ (Na/A1) ~ T~ xtl MgO AlzO 3 SiO 2 Na20 CaO TiO 2 FeO Total 2.9 0.38...is supported by studies of alkali diffusion in albite and orthoclase glasses (Jambon and Carron 1976)...are shown. Each solvus is labeled with the Na20/AlzO 3 molar ratio of the starting composition. The starting...SiO2-rich melt/w.t.% oxide in the SiO2-poor melt. A1~=AlzO a content (w.t.%) in the starting composition. (K/A1) |  | | Journal (article/letter/editorial) | | 20 for Cu Kc~ radiation with a purified annealed AlzO 3 internal standard. Unit cell constants were derived...pressure calibration runs were made on the mixture of albite and jadeite plus quartz used in the studies of...runs for eight hours at 600~ yielded reaction to albite at a nominal 16.0 kbar and to jadeite plus quartz...enstatites and unit cell constants Nominal No. of wt% AlzO 3 Anal. 0 4.0 8.0 12.0 4 4 4 Average Analyses...vv~v~'\ 8 \/ \-~'v"4~ 52 10 1 2 3 4 5 MgO AlzO 3 SiO2 39.02 2.30 58.26 38.29 4.33 57.57 37.79 |  | | Journal (article/letter/editorial) | | stability investigated: nepheline solid solutions, albite, analcite solid solutions, nepheline hydrate l...system NaAlSiOrNaAlSirOs-HzO:nepheline (NaAISiOa),albite (NaAlSirOs) and jadeite (NaAlSizOo),all of which...NaAISiO+-NaAlSi3O6,and the extent of solid solution of albite in nepheIine and vice versa. They found that nepheline...is relatively insoluble in albite, but takes up a large amount of albite in solid solution (337o by wt...They were able to synthesize analcite from gels of albite composition at low temperatures, but according |  | | Journal (issue) | | aggregati fascicolati curvi con violano ed alurgite, in albite e quarzo. Evidenziabili con acidatura non vanno...cubo molto sottile: è associata a piemontite ed albite ed a due minerali macroscopici non ancora identificati...grasso (analisi Prof. A. Barresi). Si trova con albite e più comunemente in rodonite. Specie tipiche Il...con terminazione vitrea rosa scuro, trovata su albite in associazione con violano, piemontite e criptomelano...giacitura. La prima volta fu descritto in vene di albite: in queste si può trovarlo raramente in cristalli |  | | Journal (article/letter/editorial) | | l Institute of Petrography, Universityof Parma, Italy 2 Laboratoire de P6trologie, CO 140, F-54037 Nancy...3 Institute of Mineralogy, University of Parma, Italy Abstract. Ultramafic rocks, gabbros, plagiogranites...temperature metamorphism * Financial support by C.N.R. (Italy) and A.T.P. G6odynamiquede la M6diterran6e Occidentale...accessory orthopyroxene and olivine. Albite-granites with albite as the main phase and lesser amounts...01 99.79 100.10 100.18 0.84 1.14 SiOz TiO 2 AlzO 3 F%Oatot MnO MgO CaO Na20 Fe O*/MgO Ni Co Cr |  | | Journal (article/letter/editorial) | | assemblage biotite + phengite + K-feldspar + quartz + albite. The foliation is crosscut by shear-zones now occupied...Phengite Phengite core --~ rim SiO 2 TiO 2 AlzO 3 Fe203" FeO" MnO MgO CaO Na20 K20 25.38 0.00 42...penninic Monte Rosa Gran Paradiso basement nappes, Italy. Abst first Eclogite conf. Terra Cognita 2:306 Dalrymple...et structurale dans la vall6e d'Anzasca (Province de Novara, Italie). M+m Inst G6ol Univ Louvain 28 Laduron...eo-Alpine eclogitisation of Permian granitoids, Italy. Abst first int Eclogite conf, Terra Cognita 2, |  | | Journal (article/letter/editorial) | | arkosic source. In contrast, if growth of retrograde albite is actually accompanied by Na-metasomatism then...retrograde event only. Mineral abbreviations: ab - albite, bio - biotite, chl - chlorite, ctd - chloritoid...oligoclase but clouded and rusty margins altered to albite, 76-2438, scale bar 0.1 ram. b Shimmer aggregate...greenschist facies temperatures of the retrograde event albite and microcline are the stable feldspars, although...are of albite, whereas the core composition is An16 (Table 2). The clouded texture, pure albite composition |  | | Journal (article/letter/editorial) | | dell’Universitb, via Valperga Caluso 37, 10125 Torino, Italy Abstract. A detailed field and petrological study...reaction kinetics; thrust tectonics; Westem Alps, Italy List of abbreviations used in the text, tables and...figures ab ac act alm am an ant ar aug bi b.bi albite acmite actinolite almandine amphibole anorthite...Valle dell’Orco traverse (north-west of Torino, Italy) have revealed geological histories more complicated...as the paleo-African continental margin of the Piedmont-Ligurian basin (Compagnoni et al., 1977). Within |  | | Journal (article/letter/editorial) | | the glaucophane-schist facies and the lawsonite-albite facies. There is complete miscibility between divalent...has been found subsequently is Calabria, southern Italy (de Roever, de Roever, Beunk, and Lahaye, 1967)...described in terms of Winkler's (1965) lawsonite-albite facies. A chemical analysis of a 98 percent-pure...ret-chenlcsl 5e Nlco1a Airolla, N of ScalBa. plovjrce Italy of Cosenza, southem aBlysis accordhg to conventioml...al,. (1967) and illustrated by the equation : Fer+AlzO(oH)rsio+ + sio, * Hzo Fe2+Alz(OH)4Si2O6 lerrocarpholite |  | | Journal (article/letter/editorial) | | Akatoreite,l85 Akermanite, 848 Albite, 1042 Albite + jadeite+ quartz,1153 Albite + quartz+ HzO,316 fetiasite...illite-smectite,644 johninnesite,991 leakeite, 443 Albite-quartz-sanidine-sillimanite- lizafiite, ll94 maghemite...397 Colusite,750 Compres sibility measurements albite, lo42 calcite,l5 cristobalite,1, 9 Compressibility...plagioclase, 885 topaz, 1167 Crystal structure albite, 1042 allanite,1176 amphibole, 862 annite, 51 aragonite...Iriginite, 570 maghemite, 654 magnetite, 654 Italy, 63, 353, 381, 426,750,878, 960,996,rr94 Jianshuiite |  | | Journal (article/letter/editorial) | | Metapelites in the Altavista area, southwest Virginia Piedmont, USA, underwent allochemical hydrothermal retrograde...(1985) (Fig. 1). To the north, in the western Piedmont and Blue Ridge, rocks exhibit upper greenschist...the proposed northeastern extension of the Inner Piedmont belt (Rankin ef al., 1972; Espenshade et al.,...metasedimentary rocks (summary in Hatcher, 1978). This Inner Piedmont-Smith River Allochthon-Evington Group belt of...Assemblages include muscovite, quartz, and unzoned albite plus accessory calcite, dolomite, tourmaline, and |  | | Journal (article/letter/editorial) | | corresponds closely to Be:SiOr(OH)z'HzO (neglecting the AlzO:, CaO, NazO, and H:O-. M.F.)' Spectrographicstudy...and with fine-grained albite. Berillite occurs rarely in cavities and coating albite and epididymite. The...natrolite-pectolite aggregates. Other minerals present include albite, K feldspar, astrophyllite, apatite, galena, sphalerite |  | | Journal (article/letter/editorial) | | fulgurites collected from Mt. Mottarone, Baveno (Piedmont, Italy) have been investigated to assess the mineralogical...north-northeast in the Western Alps of north-western Italy, near the town of Baveno. The Baveno-Mottarone massif...studied were collected near the top of Mt. Mottarone, Italy, from a well-exposed, N–S trending ridge, which...white granite, known as the Mont’Orfano and the Alzo-Roccapietra granites (Bugini et al. 2000). The transition...following standards were used: orthoclase (K), albite (Na), Rockport fayalite (Fe), synthetic pantelleritic |  | | Journal (article/letter/editorial) | | that the hitherto recognizedsolid solutions of albite and anorthite (not considering KAlSiOa) in nepheline...gehlenite; NE, nepheline; WO, wollastonite; AB, albite; JA, jadeite; SM, sodium metasilicate; SILL, sillimanite;...sparse glass P-AlrOa,NE (some glass?) NE, rare 0-AlzO: NE CG All glass Glass,sparseCG Glass,CG Glass...P-AI2O3 Glass, B-AI2O3,rare CG All glass Glass, rare 0-AlzO: Glass, 0-AlzOs Glass, P-AI2O3,rare CG Glass, 0-AlzOr...anorthite are e: 1.539, a:t.537. Solid solution of albite in nephelinelowersthe indices (Foster, p. 157) |  | | Journal (article/letter/editorial) | | the greater purity and high degreeof ordering of albite formed in a relatively low temperature metamorphic...masses(10 cm or more in diameter) are present in albite concentrations. These massesare weak and commonly...not as clear. As pointed out by Jahns (1946),the albite is a late replacement feature in the pegmatite...formed either before or after the albite. rrowever, even if the albite is later than the garnet' the garnet...replacement of these neously with or later than the albite. For example, Jahns (1946), con_ sidered that the |  | | Journal (article/letter/editorial) | | values of 79 quartz, 19 ~o K feldspar and 2 ~o albite. Comparable values were obtained by: (a) recasting...fraction, which gave 17.6 ~ K feldspar and 1.6 ~ albite; and (b) selective dissolution of coarse fractions...fractions which gave 15.0~ K feldspar and 1.2 ~ albite. The feldspar content indicates a sub-arkose classification...size of the sediment. At the m i n i m u m recorded AlzO 3 c o n c e n t r a t i o n the clay c o n t e n...A1203+151 A1203- 0.73 AlzO 3 - 0.17 A1203- 0.54 A1203- 0.06 A I 2 0 3 - 36.3 A1/O 3 - 5.95 AlzO 3 - 2.10 AlzO3- |  | | Journal (article/letter/editorial) | | pyroxenes from the Pennsylvania and Delaware Piedmont province: A 337 re-interpretation....... 17O 173 Brown... D.. Geology of the Atlantic and Gulf coastal province of North America(Murray) (Book review) Geologyof...hYdrolYsis of E. P. (Bookreview). . 1227 Henderson, albite solutions (FYfe, Mcflendersonite, a new calcium...gneouslayering,contrastedstyles of, in the Gardar Province of 1222,1223 H e y ,M . H . . . S. Greenland (Ferguson...330' C. and some observations on the hydrolysis of albite solutions.. .. 83 McKee, B. Aragonite in the Franciscan |  | | Journal (article/letter/editorial) | | minerals mentioned from the locality are mica, quartz, albite, garnet, black tourmaline and beryl.s The gahnite...microcline perthite, more or less replaced by white albite. Much of the feldspar, although pinkish in color...bladesand is obviously the cleavelandite variety of albite. Optically it is biaxial positive with 2V large...analysis gave the following results and ratios: SiOz Alzo: FezOg CaO Mgo MnO FeO Axer,vsrsol Sprsslnrrrn |
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