... + Hackspik) mines, Västmanland, Sweden; R = Ren, British Columbia, Canada; RÖ = Rödbergsgruvan mine, Nora, Örebro, Sweden; T = Trimouns mine, Luzenac, France; A = Anadol, East Azov region, Ukraine. ...

...Eric FERRAGE; Grégory SEINE; Anne-Claire GAILLOT; Sabine PETIT; Philippe DE PARSEVAL; Alain BOUDET; Bruno LANSON; Jocelyne FERRET; François MARTIN Abstract The surface structure of a centimetre sized crystal of talc from the Trimouns deposit (Ariége, France) was imaged by atomic force microscopy...

.... The mineral trimounsite-(Y), (Y,REE) 2 Ti 2 SiO 9 with REE = minor Dy, Er, Yb, Gd, and traces of other rare earth elements, was recently described from the open-pit talc mine Trimouns, near Luzenac, Département Ariège, Pyrénées, France ( Piret et al. , 1990 ; Favreau, 1994 ). Trimounsite-(Y...

... Syn-rift Calcite 15–30 20 160–220 Dolomite 22–27  25 180–240 Trimouns Siluro-Devonian micaschists and dolostones Syn-rift Calcite 29–33 30 130–230 300–400 CO 2 –CH 4 –N 2 Quesnel et al. (2019) Dolostone–talc 21–30 25 130–230 270–360 CO 2 –CH 4 –N 2...

... Française de in 2005. Photo by R. Pecorini of the famous mineral localities in Microminéralogie). France, including the uranium mines Mr. Favreau is a member of the Micromounter s Hall of Fame (2002), of the Lodève area, the Trimouns talc quarry, the Jas Roux thallium is a much sought-after lecturer...

..., Sterling Mine, USA, from ultrabasic rocks ( Robinson and Chamberlain 1984 ) 58.02 0.21 15.42 21.10 0.34 nd nd tr nd 0.72 (2) Pink Haïcheng, China, from dolostones alteration 63.19 nd tr 32.08 nd tr tr tr tr nd (3) Liaoyong White, China, from dolostones...

... questions need to be answered: (1) What kinds of minerals are associated with the talc crystals and in what proportions (in order to determine whether mining of the talc deposit is commercially viable)? (2) What is the chemical composition of the talc mineral itself (in order to determine whether...

... 1998 ; Nellist 2007 ; Xu et al. 2014 ). Carbon isotopic compositions of organic carbon were obtained through pyrolysis–gas chromatography–mass spectrometer analysis to trace the origin of CM. The black talc samples were collected from a black talc mining quarry (GPS coordinates: N 28°31′22.2...

... from a marble at the type locality, Balchen Mountain, East Antarctica ( Grew et al. 1991 ), a garnet-corundum rock from the Chinese Su-Lu terrane ( Enami and Zang 1988 ), a sulfide ore from the Swedish Bergslagen ( Zakrzewski et al. 1992 ), and a talc-chlorite deposit from Trimouns in the French...

... to theoretical values for talc (4.75%); a characteristic probably due to the large modal proportions of talc. Despite their large Fe contents, the major element compositions of these talc ores are close to those of talc mined at Trimouns (France), Rabenwald (Austria, Moine et al. , 1989 ), Spain ( Gamiz et al...

...; Enami and Zang 1988 ), sulfide ores (Bergslagen, Sweden; Zakrzewski et al. 1992 ), and talc-chlorite deposits (Trimouns, France; Moëlo et al. 1974 ; Parseval et al. 1997 ). Dissakisite-(Ce), ideally CaCeMgAl 2 Si 3 O 12 (OH), and dollaseite-(Ce), ideally CaCeMg 2 AlSi 3 O 11 (OH,F) 2 , are two...

... – 180 . De Parseval , P. , Fournes , L. , Fortune , J.P. , Moine , B. and Ferret , J. ( 1991 ) Distribution du fer dans les chlorites par spectrométrie Mössbauer ( 57 Fe): Fe 3+ dans les chlorites du gisement de talc-chlorite de Trimouns (Pyrénées, France) . Compte...

...Radek Škoda; Jakub Plášil; Renata Čopjaková; Milan Novák; Erik Jonsson; Michaela Vašinová Galiová; Dan Holtstam ABSTRACT A new member of the gadolinite supergroup, gadolinite-(Nd), IMA2016-013, ideally Nd 2 FeBe 2 Si 2 O 10 , was found in the Malmkärra mine, ~3.5 km WSW of Norberg, south-central...

... geodynamic context in the Pyrenees that was responsible for heat flux and crustal-scale fluid flow, as recorded by the Trimouns 112-97 Ma talc–chlorite mineralization ( Schärer et al . 1999 ). The last important point is that in Salvezines, located between the St. Arnac pluton and the Rocher du Bari site...

...Dan Holtstam; Ulf B. Andersson Abstract On the basis of characteristic assemblages, the Bastnäs-type Fe–(Cu–)REE skarn deposits in the Bergslagen mining region of south-central Sweden can be divided into two subtypes: one almost exclusively with LREE enrichment (subtype 1, mainly...

...Luca Bindi; Dan Holtstam; Giulia Fantappiè; Ulf B. Andersson; Paola Bonazzi Ferriperbøeite-(Ce), ideally [CaCe 3 ] ∑=4 [Fe 3+ Al 2 Fe 2+ ] ∑=4 [Si 2 O 7 ][SiO 4 ] 3 O(OH) 2 , is a new mineral species from the Nya Bastnäs Fe–Cu–REE skarn deposit in the Bergslagen mining region (south-central Sweden...

... replacing a carbonate layer ( Geijer, 1923 ). Lanthanide minerals were encountered in two small mines that transect a restricted skarn zone composed mainly of cerite-(Ce), tremolitic amphibole, ferriallanite-(Ce), bastnäsite-(Ce), törnebohmite-(Ce), talc and various Cu-Bi-Mo sulphide minerals...

... . Economic Geology , 76 , 1775 – 1783 . Esson J. & Santos L.C.S. dos ( 1978 ) Chemistry and mineralogy of a section through lateritic nickel deposit at Liberdade, Brazil . Institution of Mining and Metallurgy, Sect. B , 53 – 60 . Fontanaud A. ( 1982 ) Les faciès...

.... 1943), of Paris, France, mineral collector and founder of the Association Française de Microminéralogie. Found in a dolomite horizon, Trimouns talc deposit, Luzenac, Ariège, French Pyrénées. Named after Jean-Marie Graulich (1920–2001), mining engineer and Director of the Geological Survey...