... l’origine du gisement de talc et chlorite de Trimouns (Luzenac, Ariège, France). I - Mobilité des éléments et zonalités . Bull. Minéral ., 105 , 62 – 75 . Moine , B. , Fortuné , J.P. , Moreau , P. , Viguier , F. ( 1989 ): Comparative mineralogy, geochemistry and conditions...

... the bandwidth and peak position shift (δ) of MAS-NMR spectra of any of 29 Si, 1 H, or 19 F, one can obtain the precise content of even very small amounts of structural iron in talc. We are grateful to the Luzenac Europe Company (in particular to Richard Baëza) for financial support to this study...

... perfectly along the c* direction ( Fig. 4b ). These values correspond to a talc of intermediate crystal order in comparison with a well-crystallized natural talc (247 stacked layers, Trimouns quarry, Luzenac, France) or a poorly crystallized synthetic talc (10 stacked layers; Dumas et al. , 2016...

..., respectively. These two talc varieties were commercial products obtained from S.A. Talc de Luzenac (Toulouse, France). Figure 2a shows very small aggregated flakes (<50 μm) of untreated talc A with no specific arrangement, in agreement with the microcrystalline character of this talc. In sample B...

... du CNRS, LMTG, 39, allées Jules Guesde, Université Paul Sabatier, 31000 Toulouse, 4Université de Poitiers, CNRS UMR 6532 ‘Hydr’A.S.A.’, 40, avenue du Recteur Pineau, 86022 Poitiers Cedex, and 5Talc de Luzenac S.A., BP 1162, 31036 Toulouse Cedex, France The NIR spectra were obtained using two...

...Paola Bonazzi; Luca Bindi; Giancarlo Parodi Abstract Gatelite-(Ce), ideally (Ca 1 REE 3 ) ε = 4 [Al 2 (Al,Mg)(Mg,Fe,Al)] ε = 4 [Si 2 O 7 ][SiO 4 ] 3 (O,F) (OH,O) 2 , is a newly identified mineral from the Trimouns talc deposit, Luzenac, Ariège, French Pyrenees. The mineral occurs as striated...

... + 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. ...

... used was polypropylene (PP) homopolymer, HE125MO from Borealis, stabilized with a phosphate and retarded phenol antioxidant. Two types of particles – talc (Talc 1 and Talc 2) from Talc de Luzenac (France) and mica (Mica 1 and Mica 2) from Imerys Minerals Ltd (UK)– were compounded into PP using a twin...

... AI4 01O.4H20 (Hendricks, 1938). #3. Dickite: Beauty Knoll. Bull Valley St. George, Utah 16 AI2 (Si 20 s) (OHh (Searle and Grimshaw, 1960). #4. Pyrophyllite: Robbins, North Carolina 48 AI2Si40 10 (OHh (Searle and Grimshaw, 1960). 5. Talc: Luzenac mine, France Mg)Si40 10 (OHh (Searle and Grimshaw, ]960...

..., Luzenac, France and is in the collection of the RRUFF project (deposition no. R060283; http://rruff.info ), donated by Herb Obodda. The chemical composition was determined with a CAMECA SX50 electron microprobe ( http://rruff.info ). The OH content was estimated based on the charge balance and the CO 3...

...Fig. 9 Polar representation of events located around the Luzenac (Pyrenees) mine, the polar angle showing the local time of the events. Red dots are identified as “km” and black dots as “ke” in the original database [ Godey et al. , 2013 ]. Left: radius proportional to the date of the events...

.... 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...

... is translucent, with a pale green color. This crystal was collected at the Trimouns mines (Luzenac, France). The clinochlore crystal has a dark-green color with a vitreous luster, and shows relatively massive layers. This crystal was collected in the Zermatt area in Switzerland. The antigorite is translucent...

... of OH groups in the octahedral layer of hydrated Na-saponites. Talc was used in this study as a non-charged end member of the saponite series. The talc sample was supplied by Talcs de Luzenac S.A. It is referred to as T 6123 and is a very pure mineral obtained by hand sampling from the open...

... in addition. For most samples, only few mg were available. The chemical compositions of samples were determined with a Cameca SX50 electron microprobe (Paul Sabatier University, Toulouse, France). Operating conditions were 15 kV and 10 nA using natural and synthetic standards: F, topaz; Na, albite; Mg...

.... 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...

.... (a subsidiary company of Talcs of Luzenac) and produce about 86,000 t/yr (1996). These mines are the biggest talc producers in Spain, with about 80 percent of the total production. Known reserves of the La Respina area exceed 1 Mt of talc, with these figures representing only a minor fraction of the geologic...