 | | Report (issue) | | H2 O, with precipitation of gypsum and perhaps syngenite. Optical Properties: Transparent. Color: Colorless...Mg(SO4 )4 • 2H2 O. Occurrence: Common in marine salt deposits, where it may constitute the major component...Distribution: In Austria, from Ischl, Bad Aussée, and Altaussée, Upper Austria; at Hallstatt, Styria; and...Tirol. In Germany, from the Stassfurt-Westeregeln district, Saxony-Anhalt, and at Berchtesgaden, Bavaria...Campania, Italy. In England, in the Boulby potash mine, northwest of Whitby, Yorkshire, England. From Maman |  | | Report (chapter) | | zone minerals (picromerite, leonite, bloedite, syngenite and gypsum) show values ranging from þ14.73‰ to...depletion of sulphur isotopic composition of the salt minerals of potash deposits (and their weathering...of three members: a lower salt-bearing, a middle terrigenous and an upper salt-bearing one, with a total...1994), but new interpretation assumes that upper and lower salt-bearing members belong to the same, Vorotyshcha...sequence consists of interbedded salt claystones, breccias, potash and rock salt, up to 500 m thick (Petryczenko |  | Kloprogge, J. Theo, Hickey, Liesel, Duong, Loc V., Martens, Wayde N., Frost, Ray L. (2004) Synthesis and characterization of K2Ca5(SO4)6· H2O, the equivalent of görgeyite, a rare evaporite mineral. American Mineralogist, 89 (2) 266-272 doi:10.2138/am-2004-2-302 | Journal (article/letter/editorial) | | monoclinic double salt found in evaporites related to the slightly more common mineral syngenite. At 1 atmosphere...formation of syngenite and finally arcanite. Under hydrothermal conditions, the succession is syngenite at 50...görgeyite. Finally görgeyite was replaced by syngenite, indicating that görgeyite is a metastable phase...these conditions. Under hydrothermal conditions, syngenite plus a small amount of gypsum was formed, after...double salt closely related to syngenite, K2Ca(SO4)2.H2O. Although a large number of sulfate salt minerals |  | | Journal (article/letter/editorial) | | alteration of the felspar. F. W. R. III.—ON SYNGENITE. Ueber den Syngenit. Von dem c. M. v. Ritter...mineral species, discovered ti short time since in the salt-deposits of Kalusz, in Eastern Galicia. It occurs...occurs in association with cubic crystals of rock-salt, and in general appearance resembles gypsum, from...Zepharovich the specific name (crvyyev-r)?, related). ~ Syngenite is a hydrous double sulphate of calcium and potassium...resembled those of the corresponding artificial salt, which was believed to be rhombic. The present paper |  | | Report (issue) | | Syngenite K2 Ca(SO4 )2 • H2 O c 2001-2005 Mineral Data Publishing, version 1 Crystal Data: Monoclinic...Occurrence: An uncommon diagenetic component of marine salt deposits; a volcanic sublimate or pneumatolytic...bat guano in caves. Association: Halite, arcanite (salt deposits); biphosphammite, aphthitalite, monetite...Distribution: In Ukraine, large crystals from the Kalush salt deposit (Kalusz, Poland), and at Stebnyk. In Germany...Germany, from Thuringia, in the Glückauf mine, near Sondershausen, from Bischofferode, and at Volkenroda-Pöther |  | | Journal (article/letter/editorial) | | hypotheses of gypsurn dehydration by concentrated salt solutions, double salts and/or gypsum are stable...investigators have also postulated that certain salt solutions decrease the solubility of anhydrite relative...of POSNJAK and MACDONALD showing that in certain salt solutions the gypsum-anhydrite transition temperature...activations and presence in natural waters. DOUBLE SALT FORMATION The reaction for the conversion (f>)...temperature of these parameters as activators this salt that Potassium upon the effects ELI-Bused * |  | | Report (issue) | | The later calcium salts. ______ ____ Theoretical salt successions from sea water _-__''Dynamic-polythermal"...section showing the succession of evaporites in Upper Permian formations, southeastern New Mexico____...-______________ 22 11. Map showing the distribution of Permian salt deposits in northwest Europe and the British Isles...__________________ Analyses of potash zones and salt clays of marine evaporites-_-__________________...formed initially by the evaporation of sea water in salt pans, marine salinas, lagoons, and relict seas. |  | Pekov, Igor V., Kovrugin, Vadim M., Siidra, Oleg I., Chukanov, Nikita V., Belakovskiy, Dmitry I., Koshlyakova, Natalia N., Yapaskurt, Vasiliy O., Turchkova, Anna G., Möhn, Gerhard (2019) Antofagastaite, Na2Ca(SO4)2·1.5H2O, a new mineral related to syngenite. Mineralogical Magazine, 83 (6) 781-790 doi:10.1180/mgm.2019.17 | Journal (article/letter/editorial) | | Na2Ca(SO4)2·1.5H2O, a new mineral related to syngenite Igor V. Pekov1*, Vadim M. Kovrugin2,3, Oleg I...veins at the abandoned Coronel Manuel Rodríguez mine, Mejillones, Antofagasta Province, Antofagasta Region...related to syngenite K2Ca(SO4)2·H2O. Incorporation of additional H2O molecules in the syngenite-type structure...above-reported type material, antofagastaite together with syngenite and blödite occurs in the Arsenatnaya fumarole...sulfate, syngenite, crystal structure, oxidation zone of ore deposit, Coronel Manuel Rodríguez mine, Atacama |  | | Journal (article/letter/editorial) | | effect of [NaOH] on obliquity, 455 Alice Louise mine, Plaine des Pirogues, New Caledonia, chrome-picotite...analogue, 78 Ankerite, Scotland, 119 Anna Madeleine mine, Plaine des Lacs, New Caledonia, olivine, chrome-picotite...fluorite containing Mn impurities, 705 Bambollita mine, Moctezuma, Sonora, Mexico, cesbronite, 744; quetzalcoatlite...effect on crystallization of, 64I Bauzot uranium mine, Issy l'l~v6que, Sa6ne-etLoire, France, fluorite...Mtns., India = Khandala Ghat, Poona, 658 Bien S~tr mine, Pirogues Valley, New Caledonia, chrome-picotite |  | | Journal (article/letter/editorial) | | 14th century Gartenpalais Liechtenstein Vienna, Austria, Johann Michael Rottmayr 共1654–1730兲. X-ray powder...external surface with outer surface layer composed of salt efflorescence 共1兲 and ground 共2兲. III. RESULTS...Renaissance wall painting—mineralogical identification of salt efflorescence Sample 1 contains a calcite- 共CaCO3兲...a dark painting layer covered by salt efflorescence 共Figure 2兲. Salt crusts on wall paintings are formed... and Mg. According to chemical composition, the salt crust could hence contain calcium and/or magnesium |  | | Report (issue) | | (fumaroles); blödite, syngenite, mirabilite, picromerite, borax, halite (evaporites); syngenite, whitlockite,...potash mine, northwest of Whitby, Yorkshire, England. Large crystals from Kuh-E-Namak, Qom salt dome,...Bernardino Co., California; in the Carlsbad potash district, Eddy Co., New Mexico; on Kilauea, Hawaii; and...Australia. Name: From the Greek for unalterable and salt, in allusion to its stability in air. References: |  | | Journal (article/letter/editorial) | | and Møller (1989), especially at 200°C. At high salt concentrations, solubilities of both anhydrite and...temperature. Stability fields of the minerals syngenite (K2SO4 · CaSO4 · H2O) and goergeyite (K2SO4 ·...wastes (temperatures up to 200°C) isolated by rock salt formations, where the consequences of an accidental...thermodynamic model of the six-component oceanic salt system Na-K-Mg-Ca-Cl-SO4-H2O. Recently precipitation...the available experimental data for the oceanic salt system. Above 100°C solubility data are particularly |  | | Journal (article/letter/editorial) | | 1987). A large database for the modeling of aqueous salt systems exists only at 25°C. The 25°C models of...2360323OOd.02 0. 0. 0. 0. Hemihydrate d Labile Salt c 5.18724792dO3 -2.44078217601 -8262$5%3d05 ...0. ’ -5.46536263dO3 0. -130759987dO3 0. Syngenite (o*-tOO”C) 1.63629994403 jThenardite ‘- -5...would be the unitless chemical potential of the salt in the solution. For a solubility experiment, Eqn...product of the activities of the constituents of the salt raised to the power of their respective stoichiomet~c |  | | Journal (article/letter/editorial) | | 2005 Refinement of the structure of synthetic syngenite K2 Ca(SO4)2 · H2O from X-ray powder diffraction...refinement of the crystal structure of synthetic syngenite K2 Ca(SO4) · H2O has been carried out through...75 Å derived from IR measurements. Key words: syngenite, K2 Ca(SO4) · H2O, sulphate, FT-IR spectroscopy... Zepharovich described almost simultaneously syngenite, K2 Ca(SO4) · H2O, in 1872 (Korobtsova 1955)....described the mineral from Kalusa (Kalusz in Polish) salt deposit, Ivanovo-Frankovsk Oblast’, Ukraine, and |  | | Journal (article/letter/editorial) | | crystals of gypsum and the hopper shaped crystals of salt which sometimes occur in shales. B. Centers of crystallization...over a cm. NOTES AND NEWS A NEW OCCURRENCE OF SYNGENITE Ruru Doccnrr TERzAGHT,Rad.clife College. S1-ngenite...KzSOr.HrO), has previously been described only from salt deposits in association with halite, g)?sum and...and anhydrite. I have recently identified as syngenite the mineral which appears to comprise over 99/s of...Thesedataarefairlyclosetotheacceptedvaluesfor syngenite. 310 TE E AM ERICAN MIN ERALOGIST In response |  | | Journal (article/letter/editorial) | | NAMES Koktaite Koktaite, a new mineral of the syngenite group: Acia Acad.. Sci. Nat. Josr' S*axru, Moraoo-Si...gypsum' mascagnite, and ammonium alum in a lignite mine at zeravice near Kyjov, southeast Moravia. x-ray...that of syngenite. The optical data agree with those determined on artificial ammonium syngenite, (NHr)rCa(SOn)z...named for J. Kokta, who analyzed the artificial salt. Mrcrrlrl Fr,Brscnan Dervillite R. Wrrr,, La dervillite...found in a cavity in native arsenic from Gabe Gottes mine, Sainte-Marie-aux-Mines, Haute-Rhin (:Markirch, |  | | Journal (article/letter/editorial) | | (Molina et al., 1993; Fahey et al., 2001); acid mine drainage (Nordstrom et al., 2000; Garcia et al....electrolyte data, and and are parameterized from two salt mixed system data. The function F is the sum of...parameters and calcium sulphate and calcium chloride salt chemical potentials as well as the mixing parameters...anhydrite ⫹ glauberite and metastable anhydrite ⫹ labile salt (Na4Ca (SO4)3.2H2O) invariant points. At 60°C (Fig...close to the predicted metastable anhydrite ⫹ labile salt coexistence point. At 80oC, model predictions suggest |  | | Journal (article/letter/editorial) | | [K2Mg(SO4 )2 4H2O], konyaite [Na2Mg(SO4 )2 5H2O] and syngenite [K2Ca(SO4 )2 H2O] from Tausoare Cave, Rodnei Mts...sulphate minerals: leonite [K2Mg(SO4 )2 4H2O], syngenite [K2Ca(SO 4 )2 H 2O] and konyaite [Na2Mg(SO4)2...crystallogenesis. K EY WORDS : leonite, konyaite, syngenite, cave minerals, Tausoare Cave, Romania. Introduction...and leonite [K2Mg(SO4)2 4H2O] or thenardite and syngenite [K2Ca(SO4)2 H2O]. In some of the samples, characteristic...11.87 9.57 9.85 95.66 11.78 9.53 9.88 95.4 Syngenite This ICDD* le paper 28-739 9.73 7.17 6.36 107 |  | | Journal (article/letter/editorial) | | leonite mirabilite picromerite polyhalite sylvite syngenite tachyhydrite thenardite * Mineral formula in...OS014I 1 7t 012. o,. _ . gwm . 8 * g cc%Syngenite E" Rx- 7 3 I2 4 5 6 20 24 7 8 mK2S04...&bile -725.56 salt/RT = -1751.45 .024 $lyhalite/RT = -2282.5 .018 PO syngenite/RT = -1164.8* ...-* While the syngenite chemical potential is unchanged, y& sos has changed and syngenite is less soluble...sensitive to the solubility of syngenite. Upon re-evaluation of the data, the syngenite chemical potential was |  | | Journal (article/letter/editorial) | | NAMES Koktaite Koktaite, a new mineral of the syngenite group: Acia Acad.. Sci. Nat. Josr' S*axru, Moraoo-Si...gypsum' mascagnite, and ammonium alum in a lignite mine at zeravice near Kyjov, southeast Moravia. x-ray...that of syngenite. The optical data agree with those determined on artificial ammonium syngenite, (NHr)rCa(SOn)z...named for J. Kokta, who analyzed the artificial salt. Mrcrrlrl Fr,Brscnan Dervillite R. Wrrr,, La dervillite...found in a cavity in native arsenic from Gabe Gottes mine, Sainte-Marie-aux-Mines, Haute-Rhin (:Markirch, |  | | Journal (article/letter/editorial) | | buff, very soft, water soluble, contain fine syngenite inclusions, and have D 2"o4,co 1.525, E I'48o...% NH4H2PO,~,38% isomorphous KH2PO4), I i '5% syngenite, insolubles o'81% calc. total lOO'3 per cent....Laboratories, Perth, W.A. 966 M.W. PRYCE ON thick. Syngenite is closely intergrown and also enclosed in the...inclusions of syngenite. Optical properties. The crystals are colourless with many fine syngenite inclusions...concentrate still contained fine inseparable syngenite inclusions. A partial analysis by P. Hewson using |  | | Report (chapter) | | Molality 0.0153 (gm/kg H2O) 2.08 0.0229 3.11 Syngenite sy K2SO4 CaSO4 H2O K2Ca(SO4)2 2H2O 0.1528...most common of these are the Na-sulfate-carbonate salt burkeite, and the K-Cl-Mgsulfate kainite. The minerals...more soluble. The solubility of each mixed-cation salt generally falls between those of the simple salts...of the mixed salts are the Ca-bearing minerals syngenite, polyhalite, and glauberite; the most soluble...minerals; mixed-cation sulfate salts such as syngenite, polyhalite, and glauberite may form from back |  | | Journal (article/letter/editorial) | | 121 (Syn.), M l Boracite, see Iron-boracite Boulby mine, Loftus, Saltburn, Yorkshire, iron-boracite, 404...comparison with the Allende meteorite, 493 Callowhill Upper, Newtown Mr. Kennedy, Co. Wicklow, Ireland, eskolaite...ALPHABETICAL Carter's mine, Madison County, North Carolina, kerolite, 443 Cassiar mine, British Columbia...Chloroxiphite, Mendips, crystal structure, 357 Christmas mine, Gila County, Arizona, ruizJte, 429 Chrome-picotite...Aegirine, Aegirine-augite, Diopside, Sahlite Coalinga mine, California, chrysotile, 453 Columbite, Cornwall |  | | Journal (article/letter/editorial) | | has been studied in brine seeps of a German potash mine. The observed chemical trends and phase equilibria...modified seawater. Similar magnesium chloride brines of salt lakes (e.g., Dead Sea, Dabusun Lake) show subtle...some salt lakes, and are also commonly encountered as solution pockets and brine seeps in salt and potash...should also be considered. In worked salt and potash deposits and in salt-hosted repositories for nuclear...formation or ground water are a serious threat to mine safety (e.g., Spackeler, 1950; Zuber, 2000) and |  | | Journal (article/letter/editorial) | | kieserite leonite picromerite polyhalite sylvite syngenite tachyhydrite thenardite * BRAITSCH ABBREVIATIONS...Furthermore, the effect of mixing brines or of adding salt minerals to a given brine can be predicted. Table... anhydrite (CaSO,), glauberite [Na&a(SO,),], syngenite tachyhydrite (Mg,CaCle. CKzCa(SO& .6H,Ol, 12H20)...glauberite field and dash-dot boundaries the syngenite field. For location of invariant points l-11 see...of the Ca-SO, phases polyhalite, glauberite, syngenite and anhydrite. Gypsum is not stable, because at |
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