 | | Journal (article/letter/editorial) | | The Trimouns Quarry Luzenac, Ariège, France Freddy Marty Rue de l’Hôpital 11230-Chalabre France In recent...recent decades, the Trimouns quarry has become well known as a source of outstanding crystals of several...contact zone of the Trimouns talc/chlorite deposit, where large-scale mining for talc may now be approaching...approaching its end. INTRODUCTION The Trimouns talc-chlorite deposit is a mineral locality of international...synchisite, parisite, hingganite and iimoriite. Also, Trimouns is the type locality for two recently described |  | | Journal (article/letter/editorial) | | pages 223–228, 2003 Gatelite-(Ce), a new REE-bearing mineral from Trimouns, French Pyrenees: Crystal structure...polysomatic relationships with epidote and törnebohmite-(Ce) PAOLA BONAZZI,1,* LUCA BINDI,1 AND GIANCARLO PARODI2...Naturelle, 61 rue Buffon, F-75005 Paris, France ABSTRACT Gatelite-(Ce), ideally (Ca1REE3)S=4[Al2(Al,Mg)(Mg...newly identified mineral from the Trimouns talc deposit, Luzenac, Ariège, French Pyrenees. The mineral occurs...törnebohmite(Ce). Associated minerals include pyrite, aeschynite-(Y), dolomite, törnebohmite-(Ce), dissakisite(Ce) |  | | Journal (article/letter/editorial) | | mineral gatelite-(Ce) solely by homovalent substitutions, i.e., gatelite-(Ce), perbøeite-(Ce), and ferriperbøeite-(Ce);...ferriperbøeite-(Ce); (ii) the västmanlandite group – includes members typified by the mineral västmanlandite-(Ce)...västmanlandite-(Ce). This group is derived from gatelite-(Ce) by homovalent substitutions and one coupled heterovalent...M1[M3+] + O4[O2] ! M1[M2+] + O4[F]. Västmanlandite-(Ce) is the unique member of this potential group; and...by the mineral alnaperbøeite-(Ce). This group is derived from gatelite-(Ce) by homovalent substitutions |  | | Journal (issue) | | Associate Editors Pierre Bariand Sorbonne Paris , France Bill Birch Museum of Victoria Melbourne, Australia...Pierre-Nicolas Schwab Orleans , France The Trimouns Quarry, Luzenac, Ariege, France ...................... 225...Associate Photographers Nelly Bariand Sorbonne Paris, France Dan Behnke Northbrook, IL Werner Lieber Heidelberg...RECORD COVER: (center) ALLANITE(Ce) crystal, 6 mm; (upper right) PARISITE-(Ce) crystal, 5.5 mm; (lower left)...IIMORIITE-(Y) crystal, 2 mm-All from the Trimouns talc quarry near Luzenac, France (see the article beginning on |  | | Journal (article/letter/editorial) | | symmetry. Found coating miargyrite at the San Genaro mine, Huancavelica Department, Peru. Effenberger, H....Found in a dolomite carbonatite vein, Zhelezny iron mine, Kovdor carbonatite complex, Kola Peninsula, Russia...minerals. Found in the Geschiever vein of the Svornost mine, Jáchymov, southern slope of the Krušné hory Mountains...al. (2003): Am. Mineral. 88, 686. Cerite-(La) (La,Ce,Ca)9(Fe,Ca,Mg)(SiO4)3[SiO3(OH)]4(OH)3, trigonal,...reflects its composition and relationship to cerite-(Ce); it is its La-dominant analogue. Found in an aegirine |  | | Journal (article/letter/editorial) | | Sabatier, 38, rue des 36 Ponts, Toulouse 31400, France b Institut für Isotopengeologie, Departement für...magmatic stability of key accessories like zircon and monazite is now reasonably well known and the past decade...the knowledge on the metamorphic stability of monazite, epidote, sphene, and zircon. However, other stability...natural cases and experimental studies. Zircon, monazite, and apatite were the main targets of these investigations...structures and compositions similar to those of monazite or zircon, for example. Much remains to be done |  | | Journal (article/letter/editorial) | | Mössbauer spectroscopy. Cerite-(Ce) is, together with ferriallanite-(Ce), the most important REE mineral...occurrences worldwide, the present samples of cerite-(Ce) are poor in Ca and enriched in Mg and F. Calcium...apfu, and is mainly in the trivalent state. Cerite-(Ce) is a major carrier of Y (up to 3.5 wt.% Y2O3). Fluorbritholite...in REE and Y occur, ranging from fluorbritholite-(Ce) to the unaccredited member “fluorbritholite-(Y)”...with Ca < 2 and (REE + Y) > 3 apfu. Västmanlandite-(Ce) is another important host for the REE in subtype |  | | Journal (article/letter/editorial) | | / c h e m g e o Reactions destroying detrital monazite in greenschist-facies sandstones from the Witwatersrand...Accepted 13 March 2009 Editor: R.L. Rudnick Keywords: Monazite Allanite Florencite Greenschist facies Rare earth...elements Witwatersrand a b s t r a c t Detrital monazite in sandstone and conglomerate from the Witwatersrand...Africa, displays reaction textures indicating that monazite has undergone replacement after sediment deposition...heavy mineral bands, whereas co-existing detrital monazite is replaced by secondary allanite, apatite and |  | Schaltegger, Urs, Pettke, Thomas, Audétat, Andreas, Reusser, Eric, Heinrich, Christoph A. (2005) Magmatic-to-hydrothermal crystallization in the W–Sn mineralized Mole Granite (NSW, Australia) Chemical Geology, 220 (3) 215-235 doi:10.1016/j.chemgeo.2005.02.018 | Journal (article/letter/editorial) | | 2003; accepted 28 February 2005 Abstract Zircon, monazite and xenotime crystallized over a temperature interval...mineralized Mole Granite. Magmatic zircon and monazite, thought to have crystallized from hydrous silicate...crystallization process: precipitation of zircon and monazite as magmatic liquidus phases in deep crustal magma...Mole Granite. Later hydrothermal formation of monazite in a biotite–fluorite–topaz reaction rim around...disequilibrium due to Th/U fractionation during monazite and possibly xenotime crystallization, variable |  | | Book | | IIMORIITE-(Y) EUROPE FRANCE Trimouns quarry, Luzenac, Ariege. Operated for talc since the beginning of...of the 20th century, the Trimouns quarry became well known to collectors around 1990 for the superb specimens...yttrium silicate-carbonate iimoriite-(Y) occurs at Trimouns as colorless, pink and pale brown, translucent...crystalline talc. Easily the best extant crystal, a doubly terminated floater found in a talc vug in 1997...Springfield show ( 1995: 582). Madawaska [Faraday] mine near Bow Lake, Hastings County. Some of the world's |  | | Book | | Canada (16), People's Republic of China (11), and France (10). These numbers do not necessarily reflect...of a Russian mineral). However, in the case of France, the majority of the ten species were described...Brazil Bulgaria Canada Chile Czech Republic Finland France Germany Greece India Italy Japan Kazakhstan Kyrgyzstan... NEW MINERALS Abenakiite-( Ce) 1990-1994 Hexagonal (trigonal) Na26 (Ce,REEMSi0 3 MP0 4 MC0 3 MS4+0...mangan-neptunite, polylithionite, serandite and steenstrupine-(Ce). General appearance: An ellipsoidal crystal approximately |  | | Report (volume) | | after its locality Andros Island/Greece; dissakisite(Ce) (Grew et al. 1991), named from Greek dissakis twice...Mg analogue has been described twice; dollaseite-(Ce) (Peacor and Dunn 1988), named after W. A. Dollase...definitive research on the epidote minerals; khristovite-(Ce) (Pautov et al. 1993), named after the Russian geologist...ilvaite A M1M2M3 [O/(OH)2/ Si2O7] gatelite-(Ce) A1A(2,3,4) M1M2a,bM3 [O/(OH)2/ (SiO4)3/Si2O7]...structure. In the newly described mineral gatelite-(Ce) (Bonazzi et al. 2003), modules of the epidote-type |  | | Book | | 1000° Mots inc. Native Gold on Quartz, Paymaster mine, South Porcupine, Ontario / Photo by Brian Boyle...Marquis imprimeur inc. Barite on Quartz, Rock Candy mine, Grand Forks, British Columbia / Photo by Ken Mayer...Mayer Publisher Pyromorphite, Society Girl mine, Moyie, British Columbia / Photo by Ken Mayer Mineralogical... Ontario Canada Diopside on Grossular, Jeffrey mine, Asbestos, Quebec / Photo by Jeffrey A. Scovil...overflow —_Lat. fluere, to flow Old English ca.450-1050 CE krup-yo, to conceal, hide Gk. kryptein, to hide |  | | Book (edition) | | Dolomite, Aragonite, Strontianite Phosphates Apatite, Monazite Halides Fluorite, Halite Chain Silicates Pyroxene...Zinnwaldite 181 Stilpnomelane 199 Pyrophyllite 202 Talc 204 Chlorite Group 208–215 Clinochlore, chamosite...21588). Knebelite, metasomatized limestone, Blue Bell Mine, British Columbia, Canada (Mossman, D.J. & Pawson...includes K2O 0.01, H2O 0.05. 5 Tephroite, Benallt Mine, Caernarvonshire, Wales, UK (Smith, W.C. et al....with serpentine-group minerals and minor amounts of talc, mica and quartz. The relationship between iddingsite |  | | Book | | O–H-stretching vibrations of some magnesium serpentines and talc. One cannot exclude that this band corresponds to...smectites, members of the kaolinite-serpentine group, talc, vermiculite, mixed-layer minerals) are important...groups (n = 0, 1, or 2). Based on the analogy with talc, it was supposed (Wilkins 1967) that the replacement...Dickite 3704, 3654, 3622 Nacrite 3703, 3647, 3629 Talc 3676, 3660w Pyrophyllite 3675, 3647w Muscovite...phenomenon was explained by the presence of the talc component Mg3(Si4O10)(OH)2. IR spectra of synthetic |  | | Book (edition) | | 9055 89 Ac 43 r-- V 1 1 1 � 3p 111 B Ce Pr 60 Ce• 11•n 1.:".) 1:, P•J'.,V'.>:l,n •'1 1.:� ')J�;...44. c 1 3 .50 A. A natural occurrence at a coal mine in the (TL) Lvov-Volynsk basin, USSR. Achates. syn...Data on new occurrence al Saint Pandclon. Landes. France. by B. Azambre and P. Monchoux ( 1 988) 8111/....alluding to its appearance. 18.2. 1 3 Aeschynite-(Ce). (Ce.Ca.Fc.Th)(Ti.Nb) i (O,OH) 6 • 1.1. BerL.elius...natural state. Forms two series. with niobo-acschynitc-(Ce) and with acschynite-(Y): dimorphouswith lucasitc-(Cc) |
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Trimouns Talc Mine, Luzenac, Foix, Ariège, Occitanie, France