 | Gilg, H. Albert, KrĂŒger, Yves, Taubald, Heinrich, van den Kerkhof, Alfons M., Frenz, Martin, Morteani, Giulio (2014) Mineralisation of amethyst-bearing geodes in Ametista do Sul (Brazil) from low-temperature sedimentary brines: evidence from monophase liquid inclusions and stable isotopes. Mineralium Deposita, 49 (7) 861-877 doi:10.1007/s00126-014-0522-7 | Journal (article/letter/editorial) | | colourless quartz, amethyst, calcite, barite and gypsum were analysed by microthermometry after stimulating...subsequent stages II (amethyst, goethite and anhydrite), III (early Editorial handling: B. Lehmann H...Angewandte Physik, UniversitĂ€t Bern, Sidlerstrasse 5, 3012 Bern, Switzerland H. Taubald Lehrstuhl fĂŒr Isotopengeochemie...calcite) and IV (barite, late subhedral calcite and gypsum), the oxidation state of the fluid changed towards...while the different calcite generations and late gypsum precipitated at temperatures below 45 °C. Calculated |  | | Journal (article/letter/editorial) | | r. 11, 12489 Berlin, Germany Bern University of Applied Sciences, Bern University of the Arts, Conservation-Restoration...Humboldt-UniversitĂ€t zu Berlin, Unter den Linden 6, 3027 Bern, Switzerland 10099 Berlin, Germany; petra@petradariz.euor...Correspondence: thomas@schmid.eu.com Bern University of Applied Sciences, Bern University of the Arts, Conservation-Restoration...Conservation-Restoration, Fellerstr. 11, 3027 Bern, Received: 22 September 2020;Switzerland Accepted: 27 September 2020;...(e.g., mackinawite) [6], a range of sulphates (gypsum, bassanite, (calcite, quartz, forsterite) [5], |  | Jarzyna, Adrian, BÄ
bel, Maciej, Ćugowski, Damian, Vladi, Firouz (2021) Petrographic Record and Conditions of Expansive Hydration of Anhydrite in the Recent Weathering Zone at the Abandoned Dingwall Gypsum Quarry, Nova Scotia, Canada. Minerals, 12 (1) 58 doi:10.3390/min12010058 | Journal (article/letter/editorial) | | Hydration of Anhydrite in the Recent Weathering Zone at the Abandoned Dingwall Gypsum Quarry, Nova Scotia...Hydration of Anhydrite in the Recent Weathering Zone at the Abandoned Dingwall Gypsum Quarry, Nova Scotia...Dingwall gypsum quarry in Nova Scotia, Canada, operating in 1933â1955, the bedrock anhydrite deposits...beneath the secondary gypsum beds of the extracted raw material. The anhydrite has been subjected to...hydration (gypsification), transforming into secondary gypsum due to contact with water of meteoric derivation |  | Bernasconi, Stefano M., Meier, Irene, Wohlwend, Stephan, Brack, Peter, Hochuli, Peter A., BlĂ€si, Hansruedi, Wortmann, Ulrich G., Ramseyer, Karl (2017) An evaporite-based high-resolution sulfur isotope record of Late Permian and Triassic seawater sulfate. Geochimica et Cosmochimica Acta, 204. 331-349 doi:10.1016/j.gca.2017.01.047 | Journal (article/letter/editorial) | | ETH ZĂŒrich, Sonneggstrasse 5, 8092 ZĂŒrich, Switzerland b Department of Earth Sciences, ETH ZĂŒrich,... Sonneggstrasse 5, 8092 ZĂŒrich, Switzerland c Palaeontological Institute and Museum, University of...4, 8006 ZĂŒrich, Switzerland d Institute of Geological Sciences, University of Bern, Baltzerstrasse 1+3...1+3, 3012 Bern, Switzerland e University of Toronto, Dept. of Earth Sciences, 22 Russel St., M5S 3B1...year resolution, by analyzing exclusively gypsum and anhydrite deposits. We base our reconstruction on |  | | Journal (issue) | | Jacobson Alpine Anyhydrite from the Simplon Tunnel, Switzerland..................479 by W. E. Wilson Still More...(Theater) Fluorite, 15 cm Tujetsch, Surselva, Switzerland Rudolf Watzl Freistadt, Austria Visit our website...Jingnan Zhang Photos Alpine Anhydrite from the Simplon Tunnel, Switzerland Wendell E. Wilson The Mineralogical...minrecord@comcast.net âMagnificent samples of anhydrite, perhaps the absolute best that have ever been...part of the Simplon railway connecting Brig, Switzerland with Domodossola, Italy. Cutting through the |  | | Book | | jeweler, Lucerne, Curator, private museum, SWITZERLAND ye CLAUDE GUILLEMIN, Director, National Geological...STALDER, Curator, National History Museum, Bern, SWITZERLAND „& JAROSLAV SVENEK, Professor, National Museum...Swiss Federal Institute of Technology, Zurich, SWITZERLAND j& DAVID WILBER, dealer and collector, Reno,...California, U.s. A. WERNER BURGER, collector, Zurich, SWITZERLAND „& FRED CASSIRER, collector, New York, New York...Swiss Federal Institute of Technology, Zurich, SWITZERLAND }x JOHN JAGO, collector, San Francisco, California | | | Book | | edward gubelin, collector and jeweler, Lucerne, Switzerland ^ claude guillemin, Director, National Geological...stalder, Curator, National History Museum, Bern, Switzerland ^ jaroslav svenek, Professor, National Museum...Swiss Federal Institute of Technology, Zurich, SWITZERLAND ^ david WILBER, dealer and collector, Reno, Nevada...u. S. A. ^ werner burger, collector, Zurich, Switzerland ^ fred cassirer, collector, New York, New York...Swiss Federal Institute of Technology, Zurich, Switzerland ^ JOHN JAGO, collector, San Francisco, California |  | | Journal (article/letter/editorial) | | Geological Sciences, University of Bern, Baltzerstrasse 1+3, 3012 Bern, Switzerland AbstractâBentonite and iron...Feclay contact was observed. The formation of anhydrite and gypsum, and the dissolution of some SiO2 resulting...were observed, including the accumulation of anhydrite and organic carbon and the dissolution of cristobalite...samples were transported to the University of Bern (Switzerland) and stored cool (~4ÂșC). Petrophysical measurements...Geosciences of the University of Fribourg, (Switzerland) and corrected with the internal Philips software |  | Lager, G. A., Armbuster, Th., Rotella, F. J., Jorgensen, J. D., Hinks, D. G. (1984) A crystallographic study of the low-temperature dehydration products of gypsum. CaSO4 · 2H2O: hemihydrate, CaSO4 · 0.50H2O, and γ-CaSO4. American Mineralogist, 69 (9-10) 910-919 | Journal (article/letter/editorial) | | study of the low-temperaturedehydration products of gypsum,CaSOa' 2H2OzhemihydrateCaSOr ' 0.50H2O,and 1-CaSO4...Mineralogical Crystallography University of Bern, Bern, Switzerland F. J. RorBlt-n IPNS Program Argonne National...framework. Hemihydratesformed by dehydrationof gypsum(CaSO+' 2H2O)or synthesized from concentrated solutions...made by Gallitelli (1933),Flcirke(1952)and ble anhydrite) are the low-temperature(Z < 383 K) Gay (1965a...Gallitelli (1933)was the first to dehydrationproductsof gypsum(CaSOa. 2H2O).Hemi- propose a structural model for |  | | Journal (article/letter/editorial) | | Germany; petra@petradariz.eu Bern University of Applied Sciences, Bern University of the Arts, Conservation-Restoration...Conservation-Restoration, Fellerstr. 11, 3027 Bern, Switzerland Correspondence: thomas@schmid.eu.com or thomas...âH2 O, consisting of the five crystalline phases gypsum, bassanite, and the anhydrites III, II, and I,...data of the system. The dehydration path gypsumâbassaniteâanhydrite III was shown to have strong parallels...as well as the postulated three sub-forms of anhydrite II (AII), which are all based on differences in |  | | Journal (article/letter/editorial) | | some gypsum are products of high-intertidal flats. The main evaporite beds were originally gypsum, probably...hypersaline, palaeoenvironments. The gypsum was converted to anhydrite and later brecciated in part, forming...sedimentation. Throughout much of southeast England gypsum and anhydrite occur at the base of the Purbeck Beds (Howitt...lenticular crystals or gypsum or after tabular or rod-shaped crystals or anhydrite. (2) Spherulites of lutecite...basal Purbeck strata. It is calcitised secondary anhydrite ('secondary limestone' of West, 1964) which has |  | | Report (issue) | | glacial deposits, shale, and underclay 4 Gypsum and anhydrite 8 Limestone 8 Ste. Genevieve and Paoli Limestones... Map of Indiana showing distribution of gypsum and anhydrite 9 4 Map of southern Indiana showing bedrock...gas) r I I I 1· I I I I I I I I I : I I GYPSUM AND OTHER ADDITIVES Figure 1. Generalized flow...clinker formed from this pyrolysis is mixed with gypsum and other additives and is ground to a fine powder...shale, clay , iron ore, mill scale, or slag. Gypsum or anhydrite can be added to retard setting of the cement |  | | Journal (article/letter/editorial) | | Rock Exploration: A Case Study of the Messinian Gypsum in the Sorbas Basin (AlmerĂa, Spain) Alberto PĂ©rez-LĂłpez...Rock Exploration: A Case Study of the Messinian Gypsum in the Sorbas Basin (AlmerĂa, Spain). Minerals...Sorbas Basin (AlmerĂa, Spain) on the Messinian gypsum unit using geophysical prospecting methods. Geophysical...methods were applied to study the subsurface of this gypsum unit, the exploitation of which could be of interest...was observed that selenitic gypsum is more resistive than alabastrine gypsum; therefore, the diagenetic |  | | Report (issue) | | GEOLOGICAL SURVEYS MINERAL RESOURCES DIVISION GYPSUM AND ANHYDRI E By A. w. GROVES, D.Sc.(Lond...available . âąâą âą . 11 âą CONTENTS PAGE GYPSUM AND ANHYDRITE Introduction . . . . . . . . Principal.... . . . . . . Mode of occurrence . . . . . . . Gypsum in relation to Overseas Mining Laws: Royalties...mining of gypsum deposits . Beneficiation of gypsum . . . . . . Chemical by-product gypsum . . . . .... Uses of gypsum As mined or quarried . . . . . âą Crushed gypsum . . . . . . âą Ground gypsum . . . . |  | | Journal (article/letter/editorial) | | Sp6tl Geologisches Institut, Universit/~t Bern, Bern, Switzerland With 5 Figures Received March 3, 1989;...in Tyrol, Austria (asterisk). (D Germany, CH Switzerland, CS Czechoslovakia, H Hungary, I Italy, Y Yugoslavia)...1981; Sp6tl, 1988). Huge parts of the dolomite-anhydrite complex inside the salt mine are characterized...highly brecciated texture: angular dolomite, anhydrite and some related siliciclastic components are...are embedded in a coarse-grained, granoblastic anhydrite groundmass. The formation of these breccias is |  | Burisch, Mathias, Walter, Benjamin F., Gerdes, Axel, Lanz, Maximilian, Markl, Gregor (2018) Late-stage anhydrite-gypsum-siderite-dolomite-calcite assemblages record the transition from a deep to a shallow hydrothermal system in the Schwarzwald mining district, SW Germany. Geochimica et Cosmochimica Acta, 223. 259-278 doi:10.1016/j.gca.2017.12.002 | Journal (article/letter/editorial) | | Accepted Manuscript Late-stage anhydrite-gypsum-siderite-dolomite-calcite assemblages record the transition... Gerdes, A., Lanz, M., Markl, G., Late-stage anhydrite-gypsumsiderite-dolomite-calcite assemblages record...apply to the journal pertain. Late-stage anhydrite-gypsum-siderite-dolomite-calcite assemblages record...calcite, dolomite-ankerite, sideritemagnesite, anhydrite and gypsum forming the last gangue assemblages in Jurassic...recurring pattern: early calcite is followed by anhydrite or gypsum, siderite and/or dolomite. This succession |  | | Journal (article/letter/editorial) | | mineralogische Kristallographie, Universitfit Bern, Bern, Switzerland 3 Mineralogisch-Petrographisches Institut...topaz, the dehydration of gypsum and the rehydration of 7-CASO4 (soluble anhydrite) to CaSO~.0.50H20 (hemihydrate)...(calculated) optical parameters Source of data Soluble anhydrite Ca:0.383, O:1.418 Ca:0.383, O:1.418, H20:0.952...5296 2Vz 58 (1.5312) (67) (1.4892) (1.4912) Gypsum stoiehiometric CaSO 4 âą 2 HzO HzO-deficient CaSO4...mineral system follows. CaS04 - H2 0 Soluble anhydrite (7-CaSO4) and hemihydrate (CaSO40.50HzO) are low-temperature |  | | Journal (article/letter/editorial) | | University of Bern, Institute of Geological Sciences, Baltzerstrasse 1, CH-3012 Bern, Switzerland Massachusetts...contain the characteristic succession anhydriteâhaliteâanhydrite (SchroÌder et al., 2003). Overlying carbonates...BBN-1 BBN-2 Exposed Shelf Edge Fig. 12 Key: Anhydrite Halite Shelf BB-7 BB-4 Basin BB-5 BB-3 Dolostone...lithofacies ramp environment gypsum salina subtidal, periodic exposure anhydrite stromatolite Key: Lithofacies:...mud, mass flow deposition dolomite siltstone anhydrite halite A crinkly laminite outer ramp pelagic |  | | | | title MINERALE UND GESTEINE by Hallwag AG of Bern, Switzerland © English language edition, J H Haynes &...Minerology and Petrology, University of Berne, Switzerland (Director: Prof. Dr E Niggli) and of the Geo...Geological-Mineralogical Department of the Bern Natural History Museum, and from the authorâs own collection...They are drawn mainly from those occurring in Switzerland and its neighbours. Author and publisher thank...up: 1 talc, 2 gypsum, 3 calcite, 4 9 corundum, 10 diamond. |f a mineral will scratch gypsum, but is itself |  | Wersin, Paul, Mazurek, Martin, MĂ€der, Urs K., Gimmi, Thomas, Rufer, Daniel, Lerouge, Catherine, Traber, Daniel (2016) Constraining porewater chemistry in a 250 m thick argillaceous rock sequence. Chemical Geology, 434. 43-61 doi:10.1016/j.chemgeo.2016.04.006 | Journal (article/letter/editorial) | | Geological Sciences, University of Bern, Baltzerstrasse 1+3, 3012 Bern, Switzerland BRGM-ISTO-UMR 7327, 3 av....France NAGRA, Hardstrasse 73, 5430 Wettingen, Switzerland d Laboratory for Waste Management, Paul Scherrer...Scherrer Institute, 5232 Villigen PSI, Switzerland b c a r t i c l e i n f o Article history: Received...argillaceous rock sequence from a deep borehole in NE-Switzerland was investigated. The focus was to constrain...Mont Terri underground rock laboratory (URL) in Switzerland. Based on these data, the authors proposed a |  | | Journal (article/letter/editorial) | | sulfate (and derived gypsum) in the evaporiting basins. Only the massive selenite--gypsum beds appear to have...these salinas, the S-isotopic fractionation between gypsum and dissolved sulfate is practically equal to that...in this work. Upper Permian. Sample 1 is from a quarry near Castello di Fiemme (Val di Fiemme, Western...Tatarian ("Zechstein" of central Europe) and the gypsum lenses occurring within it are related to the marine...Permian. Samples 2--6 are from large deposits of gypsum embedded in the Bellerophon Formation ("facies |  | | Report (edition) | | RESEARCH GEOLOGICAL SURVEY OF GREAT BRITAIN GYPSUM AND ANHYDRITE & CELESTINE AND STRONTIANlTE H. M.. STATIONERY...RESOURCES OF GREAT BRITAIN VOL. III.-GYPSUtvI AND ANHYDRITE R. L. SHERLOCK, By D.Sc., AND and B. Sr...sulphates of calcimn and strontium are described. Gypsum, the hydrated sulphate of calcium, known when used...Sub-Wealden Exploration, was to prove the existence of gypsum of great purity in the Purbeck Beds. This also...worked almost continuously since its discovery. Anhydrite, the anhydrous sulphate of calcium, is at present |  | | Report (edition) | | SERIES Gypsum In Manitoba Manitoba Energy and Mines ~ .,.",.5 Table of Contents Gypsum ....... ...... .... .. ... .......... .. Gypsum Production In Manitoba ... Gypsum Occurrences In Manitoba. Non-ProdUcing...Mines. 1 "Loading facilities at the Amaranth Quarry" 2 Message From The Minister Of Energy And Mines...exploiting Manitoba's mineral resource heritage. Gypsum in Manitoba examines a mineral resource with a...back to 1901. Despite a modest profile, Manitoba's gypsum mines provide the feedstock for two wallboard plants |  | | Journal (article/letter/editorial) | | x Y. NATHAN, ~ AND E. lASS 3 SUMMARY. Gypsum and anhydrite from the Neogene of the central Jordan valley...above the gypsum were transformed into hydrogrossular cemented by secondary calcite and gypsum. The mineralization...partly formed in situ by thermal dehydration of the gypsum. In a nearby locality, Tel Shaharit, the mineralization...calcareous, and, in places, evaporitic (gypsum and anhydrite) rocks. The whole section is characterized...thick basalt flows. In one of the gypsum outcrops, the 'Menahamiya Quarry' (fig. I), an unusual occurrence |  | | Report (issue) | | Consultative Committee Mineral Dossier No 13 Gypsum and Anhydrite Compiled by A JG Nothol.t, BSc, MIMM, C...No 11 Ball Clay No 12 No 13 Slate 11 Gypsum and Anhydrite Preface The Mineral Resources Consultative...Portland Cement Manufacturers Limited, British Gypsum Limited, and Fisons Limited is also gratefully...rocks and location of gypsum and anhydrite mines and quarries Fig 2 Location of gypsum workings in the Vale...Billingham to Wilton area, Cleveland Fig 6 Location of gypsum mines and quarries in the East Midlands Fig 7 |
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