 | | 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...Also, Trimouns is the type locality for two recently described species, trimounsite and gatelite. The |  | | Journal (article/letter/editorial) | | 88, pages 223–228, 2003 Gatelite-(Ce), a new REE-bearing mineral from Trimouns, French Pyrenees: Crystal...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) |  | | Report (issue) | | Gatelite-(Ce) (Ca, Ce)4(Al, Mg, Fe)4(Si2O7)(SiO4)3(O, F, OH)3 Crystal Data: Monoclinic. Point Group:...700 μm; as oriented intergrowths in törnebohmite-(Ce) with [010] of both species parallel. Physical Properties:...0.245 [1.34] 0.103 98.780 (1) Trimouns talc deposit, Luzenac, Ariège, French Pyrenees, H2O calculated...lamellae of törnebohmite-(Ce). Mineral Group: Gatelite supergroup, gatelite group. Occurrence: In dolomitic...portions of a talc deposit. Association: Pyrite, aeschynite-(Y), dolomite, törnebohmite-(Ce), dissakisite-(Ce) |  | | Journal (article/letter/editorial) | | 31, 173–181 Published online 17 October 2018 Gatelite-supergroup minerals: recommended nomenclature...criteria of forming a mineral supergroup, named the gatelite supergroup. All members share the same general...(i) the gatelite group – includes members that can be derived from the mineral gatelite-(Ce) solely by...homovalent substitutions, i.e., gatelite-(Ce), perbøeite-(Ce), and ferriperbøeite-(Ce); (ii) the västmanlandite...the mineral västmanlandite-(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 (issue) | | Collector's Newsletter Micromineralogy of the Leiser Ray Mine, San Bernardino County, California Paul M. Adams...Avenue #2 Redondo Beach, CA 90277 The Leiser Ray Mine is located in Sections 15 & 22, Tl IN, R 18E, about...Main and Louisiana-California. Fred Leiser was the mine manager for the Louisiana-California Mining Company...Company (C!oudman, et al, 19 19). The Leiser Ray Mine was the only deposit worked primarily for vanadium...ha~ som_e humongous beryllonites, from the Telinio Mine, Linopolts. Minas Gerais and astonishing large helvites |  | | 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 |  | | 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...SiO4/Si2O7] ilvaite A M1M2M3 [O/(OH)2/ Si2O7] gatelite-(Ce) A1A(2,3,4) M1M2a,bM3 [O/(OH)2/ (SiO4)3/Si2O7]...the structure. In the newly described mineral gatelite-(Ce) (Bonazzi et al. 2003), modules of the epidote-type |
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Trimouns Talc Mine, Luzenac, Foix, Ariège, Occitanie, France