 | | Journal (article/letter/editorial) | | reported the formation of both kaolinite and pyrophyllite by the hydrothermal treatment of feldspar with...about ten grams, was placed in a very thin, porous cup made of alumina, TO ASP I RATOR THERMAL JUNCTION...liquid which can flow through the sample and porous cup. IFION PIPE CORE INSULATION' Fro. 2. Heating furnace...the first runs condensation was so rapid that the cup continuously overflowed. One of the chief advantages...run is made by placing the sample in the porous cup and adding about 75 c.c. of distilled water to the |  | Párez-Maqueda, Luis A., Franco, Francisco, Avilés, Miguel A., Poyato, Juan, Pérez-Rodríguez, José L. (2003) Effect of Sonication on Particle-size Distribution in Natural Muscovite and Biotite. Clays and Clay Minerals, 51 (6) 701-708 doi:10.1346/cmn.203.0510613 | Journal (article/letter/editorial) | | except for a small contamination by Ti from the tip cup of the sonication instrument. Key Words—Biotite,...is assigned to contamination produced by the tip cup of the sonication equipment. Nevertheless, the percentages...1997, 2000). By 29Si and 27Al MAS-NMR in ground pyrophyllite, tetrahedral sheet breakdown and important modifications...attributed to contamination produced by the tip cup of the sonication equipment. All the above results...Sánchez-Soto, P.J. (1988) Effect of dry grinding on pyrophyllite. Clay Minerals, 23, 399 – 410. Pérez-Rodrõ´guez |  | | Journal (article/letter/editorial) | | pages 1293–1299, 2006 Stacking structures in pyrophyllite revealed by high-resolution transmission electron...169-0073, Japan ABSTRACT Stacking structures in pyrophyllite, Al2Si4O10(OH)2, were investigated mainly by...structure, pyrophyllite, electron microscopy, order-disorder, XRD data INTRODUCTION Pyrophyllite and talc...tetrahedral sheets across the interlayer of pyrophyllite and talc can be almost ±ai/3 (i = 1, 2, or 3)...1969). Ďurovič and Weiss (1983) showed that pyrophyllite can potentially adopt 30 non-congruent (22 non-equivalent) |  | | Journal (issue) | | andsugilite Pyrite, fh.iorite and quartz accorrrpany pyrophyllite Roadstd£ Panning S1t€s 111 N€W M€XICO 34 ...pegmatites but <\re- lacking in qllartz. Th the Princess Quarry at Dungannon, Ontario, Capada. pluc ma~si\le s0daliLe...Glendon pyrophylllte quarry. Collectors at the semiannual field trip dig In the pyrophyllite for large pyrite...mnual trip into the Glendon M111e, a pyrophyllitC quarry owned and operated by SLanliard Mineral Co. ii...unique combina\ion of 1ninerals is round in Lbe quarry. includi1\g massive pyropl1y11ite of Vario us colors |  | | Journal (article/letter/editorial) | | resolution TEM images of kaolinite, mica, and pyrophyllite, which are providing new fundamental insights...302 D ECEMBER 2005 Society News THE REYNOLDS CUP—A TOOL FOR RAISING THE STANDARD OF QUANTITATIVE MINERAL...interlaboratory round robin event. The “Reynolds Cup” project was initiated by a group of CMS members...results were returned. In 2004, the second Reynolds Cup was organized by Reinhard Kleeberg in the same manner...the second Reynolds Cup competition, Oladipo Omotoso, will organize the third cup. The event is starting |  | | Journal (article/letter/editorial) | | ORIGINAL PAPER In situ impedance spectroscopy on pyrophyllite and CaCO3 at high pressure and temperature:...charge carriers and phase transformations in pyrophyllite and CaCO3 aggregates. From comparison with previous...pressure–temperature conditions for dehydration reactions in pyrophyllite and phase transformations in CaCO3 can be accurately...accurately determined using our setup. Dehydration of pyrophyllite significantly enhances the transport kinetics...dehydroxylation and decomposition temperatures for pyrophyllite under undrained and drained conditions are combined |  | Dekoninck, Augustin, Monié, Patrick, Blockmans, Sabine, Hatert, Frédéric, Rochez, Gaëtan, Yans, Johan (2019) Genesis and 40Ar/39Ar dating of K-Mn oxides from the Stavelot Massif (Ardenne, Belgium): Insights into Oligocene to Pliocene weathering periods in Western Europe. Ore Geology Reviews, 115. 103191 doi:10.1016/j.oregeorev.2019.103191 | Journal (article/letter/editorial) | | K-Mn oxides from the Stavelot Massif (Ardenne, Belgium): Insights into Oligocene to Pliocene weathering...University of Namur, 61 rue de Bruxelles B-5000 Namur, Belgium Géosciences Montpellier, UMR-CNRS 5243, Université...Wallonie, 14 Avenue Prince de Liège B-5100, Jambes, Belgium d Laboratoire de Minéralogie, Université de Liège...Liège, 14 allée du six août B-4000, Liège, Belgium b c ARTICLE INFO ABSTRACT Keywords: Manganese deposit...the Stavelot inlier (NE Ardenne, Rhenish Massif, Belgium) has drawn the attention of geoscientists for more |  | | Journal (article/letter/editorial) | | halloysite, smectite, biotite, muscovite and pyrophyllite, however, showed differential loss (relative...phyllosilicate stabilities are kaolin < smectite < pyrophyllite < mica. A cJear dependence of element loss on...halloysite and smectite, and other phyllosilicates pyrophyllite, muscovite and biotite were studied. Their chemical...the specimen plane is perpendicular to (001). Pyrophyllite The loss of AI is evident in pyrophyHite (Figure...liquid nitrogen, the temperature of the specimen cup was measured to be -130 ± 5 °C even though the 636N |  | | Journal (article/letter/editorial) | | fine diaspore (FDIA), kaolinite, illite, and pyrophyllite (D50 is about 4.55 µm, D80 is about 10.78 µm)...4%, and 84.7%, respectively. The addition of pyrophyllite had a significant deteriorating effect on flotation...flotation. When the addition of pyrophyllite was 5 wt.%, the pyrite recovery was reduced to 49.2%, and...effect of pyrophyllite addition on the pulp rheology of the mixed ore was not remarkable. Pyrophyllite affected...rheological behavior of the pulp, but also because pyrophyllite was adsorbed on the surface of pyrite and diaspore |  | Leinenweber, K. D., Tyburczy, J. A., Sharp, T. G., Soignard, E., Diedrich, T., Petuskey, W. B., Wang, Y., Mosenfelder, J. L. (2012) Cell assemblies for reproducible multi-anvil experiments (the COMPRES assemblies) American Mineralogist, 97 (2) 353-368 doi:10.2138/am.2012.3844 | Journal (article/letter/editorial) | | cavity and pushed on a pressure medium made of pyrophyllite in the shape of an octahedron 4 mm in edge length...semisintered MgO or Cr-doped MgO octahedra with pyrophyllite gaskets around them and truncations of 2, 8...through the middle. This module, known as the 25 mm T-cup or T-25, was built at the GSECARS beam line at Argonne...of the cell assemblies in this project use a pyrophyllite gasket + oxide ceramic octahedron design, the...Paper Anchor Paper Sheet 3-ply process blanks q Pyrophyllite Bar-lo Finished Lava 2.69† r Rhenium Rhenium |  | Čavajda, Vladimír, Uhlík, Peter, Derkowski, Arkadiusz, Čaplovičová, Mária, Madejová, Jana, Mikula, Milan, Ifka, Tomáš (2015) Influence of Grinding and Sonication on the Crystal Structure of Talc. Clays and Clay Minerals, 63 (4) 311-327 doi:10.1346/ccmn.2015.0630405 | Journal (article/letter/editorial) | | vermiculite (Pérez-Maqueda et al., 2004b) and pyrophyllite (Pérez-Rodrı́guez et al., 2007). A direct comparison...measuring stainless steel cup, packed by shaking, and finally doctor bladed to cup-rim level in order to...material was also observed directly (using TEM) on pyrophyllite (Uhlı́k et al., 2000) and on kaolinite either...Evans, B.W. and Guggenheim, S. (1988) Talc, pyrophyllite and related minerals. Pp. 225 295 in: Hydrous...and Kato, T. (1964) Thermal transformation of pyrophyllite and talc as revealed by X-ray and electron diffraction |  | | Journal (article/letter/editorial) | | combinationsof quartz, andalusite,corundum,diaspore,pyrophyllite, alunite, kaolinite, and specularite. The h...Figtires 4 and 7 sb,•w the (listrilmtion of pyrophyllite at Cabang Kiri and drilling has convein-controlled...alunite-kaolinite,alunite-kaolinite-pyrophyllite, diaspore-pyrophyllite, ally at Tombuililato,barrenadvancedargillicaltera-...barrenadvancedargillicaltera- diaspore-pyrophyllite-alunite, andalusite-pyrophyltion of severaltypes is commonand...commonand is very wide- andalusite-pyrophyllite-diaspore, spreadin the rhyolitic wall rocks. Quartz-sericite |  | | Journal (article/letter/editorial) | | C for 2 h in a graphite capsule inside a pyrophyllite cup in a piston-cylinder apparatus, using a 1...0 GPa for 2 h. In this case a thin layer of pyrophyllite powder surrounded the platinum capsules to avoid...Pressure calibration for the NaCl-graphite in pyrophyllite cup-crushable aluminapyrex assemblies established...capsules 2 mm internal diameter, 4.5 mm long in pyrophyllite cups in NaCl-pyrexcrushable alumina assemblies...during piston-cylinder experiments by use of pyrophyllite powder. Am. Miner. 86, 234–237. Freda C., Baker |  | | Journal (article/letter/editorial) | | stem, one of which fits inside the other. The outer cup has a flange with a ground top surface that is accurately...preparation and carries the cap assembly. The inner cup has a recess cut into it, in which a sintered quartz-glass...boron nitride, is held on to the flange of the outer cup and causes the inlet gases passing up the outer stem...flanged hemispheres are held together by two pyrophyllite tings and four stainless-steel screws with gaskets...lower pyrophyllite ring has a lip that locates the assembly on the ground flange of the outer cup. The |  | | Journal (issue) | | where ubiquitous amounts of massive Talc (var. pyrophyllite) can be found (its really good for practicing...location and set a date by coordinating with the quarry or mine while being sure to leave your contact...field trips. One was on July 12th at the Manassas quarry. Back at the June meeting, one of the issues of...field trip chairman, and this trip to the Manassas quarry was tentatively cancelled. However, Dave Hennessey...sample is about the size of a fist and took about 1/3 cup acid from the jug, and 2/3 cups water to do the job |  | Bartos, Paul J., Garcia, Cesar, Gil, Javier (2017) The Nuevo Chaquiro Cu-Au-(Mo) Porphyry Deposit, Middle Cauca Belt, Colombia: Geology, Alteration, Mineralization. Economic Geology, 112 (2) 275-294 doi:10.2113/econgeo.112.2.275 | Journal (article/letter/editorial) | | this zone are minimal. Rare late veinlets of pyrophyllite ± quartz in sericitically altered rocks are...quartz-pyrite-calcite veinlet. CHA-019 526.7 m f. Pyrophyllite-quartz veinlet cutting sericitically altered...magnetite, PG = plagioclase, PY = pyrite, PYR = pyrophyllite, QZ = quartz, SE = sericite. 285 286 BARTOS...that the highest grades tend to form an inverted cup coincident with the upper portion of the copper shell...second contiguous orebody, consisting of an inverted cup oreshell (at lower grades of 0.3% Cu) occurs in the |  | | Journal (article/letter/editorial) | | announced a series of field trips. The Lachaine Quarry, the McGlashan Mine, the Evans Lou Mine, Bear Lake...viewed slides of the Borax deposits in Glen Mills Quarry provided some nice Death Valley presented by Mrs...presented a program on Working With 604 to a Gneiss Quarry and found lots of nice specimens. A field trip...field trip to the Rockville, Md. (Hunting Hill) Quarry, where a good collection of minerals were lo cated...Sixteen carloads of club mem bers went to the Dundas Quarry in Can ada. The club notes that its 1973 show |  | Kamitani, M., Okumura, K., Teraoka, Y., Miyano, S., Watanabe, Y. (2007) Mineral Resources Map of East Asia, Geological Survey of Japan. | Map | | phosphate PGM: platinum group elements Pp: pyrophyllite Ps: pottery stone Py: pyrite Pb: lead REE: rare... 1,000 Pyrite (FeS2) 20,000,000 200,000 Pyrophyllite/Pottery stone (ore) 50,000,000 1,000,000 ...hessite aut: autunite crn: carnotite azr: azurite cup: cuprite ill: illite ilm: ilmenite bar: barite...pentlandite stp: stephanite znc: zincite pph, pyrophyllite str: strontianite znk: zinkenite xnt: xenotime |  | | Journal (article/letter/editorial) | | capsule, 3.5 mm long, 2 mm internal diameter, in pyrophyllite capsule, sandwiched in crushable alumina. c...internal diameter, in Pt capsules surrounded by pyrophyllite powder, in crushable alumina. in Table 1 we...experiments were in graphite capsules inside pyrophyllite cups (Freda et al., 2003). We had technical...welded Pt capsules surrounded by a thin layer of pyrophyllite powder and placed in NaCl– crushable alumina–Pyrex...pressure calibration for the NaCl– graphite in pyrophyllite cup– crushable alumina–Pyrex assemblies demonstrates |  | | Journal (article/letter/editorial) | | temperature pyrophyllite forms from mixtures that below 400ø give kaolinire. Pyrophyllite has been reported...SILICATES 633 the same temperature. For example, pyrophyllite and montmorillonite lose most of their water...*Andalusite, pyrophyllite K faujasite, • pyrophyllite Orthoclase, K faujasite, • pyrophyllite Pyrophyllite *Muscovite... • pyrophyllite Kaliophilite, K faujasite • Pyrophyllite, Kfaujasite, • kaliophilite Pyrophyllite, orthoclase...albite *Albite Albite Analcite Opal, pyrophyllite Opal, pyrophyllite Opal Opal Amorphous as hieratite. |  | | Journal (article/letter/editorial) | | and Inoue 2005a, 2005b; Kogure et al. 2010), pyrophyllite (Kogure et al. 2006a), and talc (Kogure et al...fluorescent screen, which was calibrated by a Faraday cup in advance. If necessary, the recorded images on...Kitagawa, R. (2006a) Stacking structures in pyrophyllite revealed by high-resolution transmission electron |  | | Journal (article/letter/editorial) | | 1958). Onyx (quartz), arachnids, Cenozoic, Bonner Quarry, Ashfork, Arizona (Petrunkevitch, 1945). Limonite-Geothite...Form ation, western New York (Fisher, 1951). Pyrophyllite, sponges, graptolites, age and locality not.../ . Geol, 14, 269-289. Cady, W. M. 1950. Fossil cup corals from the meta morphic rocks of central Vermont |  | | Journal (article/letter/editorial) | | voltage of 15 KV, I5 nA sample current on Faraday cup, 20 seconds maximum counting time and beam diameters...increasing muscovite component and decreasing pyrophyllite component with increasing tem~mture from illite...correspond stoichiometrically to muscovite (Mu) and pyrophyllite (Py), respectively, the last cor- Table 3:...responding to the compositions of muscovite and pyrophyllite of natural s&cites were calculated from the...expressed as the value of the activity of the pyrophyllite component in the diagrams of Fig. 7. The stability |  | | Journal (article/letter/editorial) | | U-70 in Table 3 was used. Ningyoite; the sample Cup-E2-185 was used. Calcite; reagent grade calcium carbonate...in pattern pH from , Cupo-D). uranyl . 3. (Cup glucose for uranyl X-ray Fig a (1+1)HCl and...with The order material and 130•Ž. 3. in (Cup-A-130), mixture apatite carbonate sulphate lignin...synthesis by them of did are identified pattern (Cup-A-100) Ningyoite grade. syntheses compounds ...F), Precipitation uranous case similar of cal Cup to -E but Table 3. Data for syntheses of |  | François, Camille, de Sigoyer, Julia, Pubellier, Manuel, Bailly, Vivien, Cocherie, Alain, Ringenbach, Jean-Claude (2016) Short-lived subduction and exhumation in Western Papua (Wandamen peninsula): Co-existence of HP and HT metamorphic rocks in a young geodynamic setting. Lithos, 266. 44-63 doi:10.1016/j.lithos.2016.09.030 | Journal (article/letter/editorial) | | Geology, PAL3, B18, University of Liège, 4000 Liège, Belgium Université Grenoble Alpes, CNRS, ISTerre, F-38041...crosscut by late fractures rich in Mg-chlorite, pyrophyllite and quartz crystallized (Fig.4). D We studied...interest to be simultaneously recorded: U on Faraday cup collectors. The detailed SC R analytical procedure...mass bias, the shift of the ion counter vs. Faraday cup calibration and the elemental fractionation due to...with a paragenesis 3 (P3) of Mg-chlorite and pyrophyllite (Fig.4). The corresponding P-T conditions obtained |
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