 | | Journal (article/letter/editorial) | | minerals: a statistical phenomenological approach. V. KAHLENBERG.– On the Al/Fe substitution in iron doped monocalcium...REKHI, T. LE BIHAN .– Direct transition from cristobalite to post-stishovite a-PbO2-like silica phase...ultrahigh-pressure metamorphic area of the central Erzgebirge, Germany. G. CULTRONE, C. RODRIGUEZ-NAVARRO, E. SEBASTIAN |  | | Journal (article/letter/editorial) | | chemistry, chemical technology, etc. (Rieck, 1996; Kahlenberg, 2010). However, the minerals of this chemical...Si-centred tetrahedra. In the structures of Na6Si2O7 (Kahlenberg et al., 2010) and K6Si2O7 (Jansen, 1982) the...chemistry of anhydrous Na silicates is given by Kahlenberg (2010). Crystal structures of the majority of...g-form is based on an interrupted framework (Kahlenberg et al., 2003). Another type of interrupted framework...OF ALKALINE SILICATES the basis of Na2Si3O7 (Kahlenberg et al., 2002). In nature only natrosilite, b-Na2Si2O5 |  | Schmidmair, Daniela, Kahlenberg, Volker, Többens, Daniel M., Schottenberger, Herwig, Jochem De Wit, , Griesser, Ulrich J. (2015) Temperature- and moisture-dependent powder X-ray diffraction studies of kanemite (NaSi2O4(OH)·3H2O) Mineralogical Magazine, 79 (1) 103-120 doi:10.1180/minmag.2015.079.1.09 | Journal (article/letter/editorial) | | Crystallography, Hahn-Meitner-Platz 1, D-14109 Berlin, Germany Institute of General, Inorganic and Theoretical...is based on the d-form of sodium disilicate (Kahlenberg et al., 1999). In this context, ‘builder’ denotes...‘SKS-10’ material, provided kindly by Clariant, Germany, was used, although it contains a minor amount...107 of the following crystalline compounds: cristobalite, tridymite and b- and d-Na 2 Si 2 O 5 . Quantification...kanemite, Na2Si4O9. The simultaneous occurrence of cristobalite and tridymite in a temperature regime where |  | Tait, K. T., Yang, H., Downs, R. T., Li, C., Pinch, W. W. (2010) The crystal structure of esperite, with a revised chemical formula, PbCa2(ZnSiO4)3, isostructural with beryllonite. American Mineralogist, 95 (5) 699-705 doi:10.2138/am.2010.3415 | Journal (article/letter/editorial) | | (Hörkner and Müller-Buschbaum 1976), CaAl1.8Fe0.2O4 (Kahlenberg 2001), AgXPO4 (X = Be, Zn) (Hammond et al. 1998)...in isostructural CaAl2O4 and CaAl1.8Fe0.2O4 (Kahlenberg 2001), despite the larger ionic radius of Pb2+...and BaAl2O4 with CaAl2O4 and CaAl1.8Fe0.2O4, Kahlenberg (2001) suggested that the magnitude of the coordination...beryllonite-type CaAl2O4 and CaAl1.8Fe0.2O4 (Kahlenberg 2001) indicates that there is a geometrical mismatch...this site a possible target of attack by water (Kahlenberg 2001). Accordingly, accommodation of Ca2+ by |  | | Journal (article/letter/editorial) | | Universität Münster, Correnstr. 24, 48149 Münster, Germany *Corresponding author, e-mail: psb@uni-muenster...Stuttgart 160 P. Schmid-Beurmann, F. Brunet, V. Kahlenberg, E. Dachs The present study focuses on the properties...of AlPO4-tridymite with small amounts AlPO4-cristobalite (Debnath & Chaudhuri, 1992). About 600 mg of...0.99 162 P. Schmid-Beurmann, F. Brunet, V. Kahlenberg, E. Dachs Table 2. Data collection and single-crystal...applied. 164 P. Schmid-Beurmann, F. Brunet, V. Kahlenberg, E. Dachs Table 5. Selected bond lengths (Å) |  | | Journal (article/letter/editorial) | | other rock-forming framework silicates such as cristobalite, tridymite, nepheline, kalsilite, leucite, etc...not well understood. The crystal structures of cristobalite and quartz are based on the dia and qtz (quartz)...static complexities of the crystal structures of cristobalite and quartz, defined as their structural information...topology, which, in turn, is more complex than the cristobalite topology. Krivovichev et al. (2012) applied...Series, 43. Quebec, Canada. Krivovichev, S.V., Kahlenberg, V., Kaindl, R., Mersdorf, E., Tananaev, I.G |  | | Journal (article/letter/editorial) | | olivine-like structures was reviewed by Redfern (1997). Kahlenberg & Zeiske (1997) investigated the structural properties...solved the structure of the highpressure phase of cristobalite, which corresponds to a distortion of the high-temperature...of the high pressure monoclinic phase-II of cristobalite SiO2. Min. Mag., 64, 569-576. Ehrenberg, H....pressure. Phys. Chem. Minerals., 27, 225-233. Kahlenberg, V. & Zeiske, T. (1997): Structure of γ-Bi2Sn2O7 |  | | Journal (article/letter/editorial) | | DM4500P optical microscope (Leica Camera AG, Wizlar, Germany). Afterwards, a MIRA3 TESCAN (TESCAN, Brno, Czech...discussion and revision of the manuscript by Volker Kahlenberg (University of Innsbruck) is also acknowledged...33. 24 of 25 Liles, D.C.; de Villiers, J.P.; Kahlenberg, V. Refinement of iron ore sinter phases: A silico-ferrite...2003, 178, 307–335. Zöll, K.; Manninger, T.; Kahlenberg, V.; Krüger, H.; Tropper, P. Investigations on... B 2017, 48, 2207–2221. [CrossRef] Zöll, K.; Kahlenberg, V.; Krüger, H.; Tropper, P. Investigations on |  | | Journal (article/letter/editorial) | | Erlangen-Nürnberg, Schlossgarten 5a, 91054 Erlangen, Germany. thomas.angerer@uibk.ac.at 1 2 Despite the strong...Stilleweg 2, Hannover Germany; present address: Kiebitzweg, 104, 30880 Laatzen, Germany 3 Department of Lithospheric...Geowissenschaften und Rohstoffe (BGR, Hannover, Germany) carried out a reconnaissance survey of a hitherto...245(2) c = 26.824(3) Å, α = 90.00(1)°. HEJNY, C., KAHLENBERG, V., EBERHARD, T. & KRÜGER, H. (2016): Acta Crystallogr...University of Hannover,Callinstraße 3,30167 Hannover, Germany 3 Institute of Earth Sciences, Heidelberg University |  | | Journal (article/letter/editorial) | | Greece Zn5(OH)8Cl2·H2O Richelsdorf slags, Hesse, Germany Pb3O3Sb3+(OH)Cl2 Lavrion District slag localities...(Ashley and Lottermoser 1999) Baden-Württemberg, Germany (type) (Klaproth 1804) Ramsbeckite (Cu,Zn)15(SO4)4(OH)22·6H2O...Zn)15(SO4)4(OH)22·6H2O Bastenberg mine, Ramsbeck, ? Germany (type) (von Hodenberg et al. 1985) Schulenbergite... Harz, OK Platosa mine, Bermejillo, Durango, Germany (type) (von Hodenberg et al. 1984) Mexico (Moore...Goslarite ZnSO4·7H2O Rammelsberg mine, Goslar, Germany (type) OK (Palache et al. 1951) Kornelite Fe23+(SO4)3·7H2O |  | | Book (volume) | | (Specord 75 IR or Specord M80, Carl Zeiss, Jena, Germany), Perkin Elmer 1600 Series FT IR spectrometer or...FT IR spectrometer (Bruker Optics, Ettlingen, Germany). IR spectrum of a pure KBr disc was subtracted...Mg3B7O13Cl Locality: Wandsleben, Saxony-Anhalt, Germany. Description: White to beige fine-grained aggregate...Lüneburger Kalkberg, Lüneburg, Lower Saxony, Germany (type locality). Description: White fibrous aggregate...Niedersachswerfen, Nordhausen, Harz, Thuringia, Germany. Description: White crystals on anhydrite. Investigated |  | | Journal (article/letter/editorial) | | MECHANISMS IN TERRESTRIAL SEDIMENTS OF NUSSLOCH (GERMANY) Brazier, J.-M.1,2, Schmitt, A.-D.2, Gangloff,...University of Bonn, Nussallee 13, D-53115 Bonn, Germany. 4 Department of Geography, University of Zurich...these kinds of sequences from Nussloch region (Germany). Our results indicate that the leached fractions...Darmstadt, Franzika-Braun-Straße 3, D-64287 Darmstadt, Germany 4 Institute of Molecular Biosciences, University... dietmar.klammer@tugraz.at D-64287 Darmstadt, Germany 4 Institute of Molecular Biosciences, University |  | Zhitova, Elena S., Khanin, Dmitry A., Nuzhdaev, Anton A., Nazarova, Maria A., Ismagilova, Rezeda M., Shilovskikh, Vladimir V., Kupchinenko, Anastasia N., Kuznetsov, Ruslan A., Zhegunov, Pavel S. (2022) Efflorescent Sulphates with M+ and M2+ Cations from Fumarole and Active Geothermal Fields of Mutnovsky Volcano (Kamchatka, Russia) Minerals, 12 (5) 600 doi:10.3390/min12050600 | Journal (article/letter/editorial) | | SiO2 × nH2 O polymorphs: opal, tridymite, and cristobalite, all derived as the result of an alteration...formation of silicate dioxide minerals: opal, cristobalite, and tridymite. The jarosite rim around shaped...minerals; and SiO2 —silica dioxide minerals as opal, cristobalite, and tridymite). Taking into account the variability...Vandemeulebrouck, J., Eds.; Springer: Berlin/Heidelberg, Germany, 2015; pp. 155–178. [CrossRef] Inguaggiato, C.;...250–253. [CrossRef] Mills, S.J.; Nestola, F.; Kahlenberg, V.; Christy, A.G.; Hejny, C.; Redhammer, G.J |  | | Journal (article/letter/editorial) | | 2010; De La Pierre et al. 2011; Többens and Kahlenberg 1370 Vibrational calculations The calculation...Evans (2010): Trd = tridymite (SiO2); Crs = cristobalite (SiO2); Qz-b = quartz-b (SiO2); Mul = mullite... (1982) Thermodynamic properties of quartz, cristobalite and amorphous SiO2: drop calorimetry measurements...America Bulletin, 84, 1335–1348. Többens, D.M., and Kahlenberg, V. (2011) Improved DFT calculation of Raman |  | | Journal (article/letter/editorial) | | end member brownmillerite phase (CaAlO2.5) (Kahlenberg et al. 2000). The Ca(Al0.5Si0.5)O2.75 composition...CaO–Al2O3–SiO2 system, including SiO2 quartz, cristobalite, coesite and stishovite, Al2O3 corundum, Ca2SiO4...first-principles calculations Phase SiO2 low-cristobalite SiO2 quartz SiO2 coesite SiO2 stishovite Ca3Al2Si3O12...quadrupolar nuclei in solids. J Magn Reson 85:173–180 Kahlenberg V, Fischer RX, Shaw CSJ (2000) Rietveld analysis |  | | Journal (article/letter/editorial) | | compositions lie in the SiO2 phase (tridymite/cristobalite/quartz), albite, sodium silicate (Na6Si8O19...compositional space for many stuffed derivatives of cristobalite and tridymite. This compositional space may...kaliophilite/kalsilite (K8Al8Si8O32), and tridymite/cristobalite (o8Si16O32) (Rossi et al. 1989). Three axes...eite, kaliophilite/kalsilite, and tridymite/cristobalite quaternary as described by Rossi et al. (1989)...Vulić, P., Balić-Žunić, T., Belmonte, L., and Kahlenberg, V. (2011) Crystal chemistry of nephelines from |  | Shannon, Ruth C., Lafuente, Barbara, Shannon, Robert D., Downs, Robert T., Fischer, Reinhard X. (2017) Refractive indices of minerals and synthetic compounds. American Mineralogist, 102 (9) 1906-1914 doi:10.2138/am-2017-6144 | Journal (article/letter/editorial) | | Center for Materials and Processes, D-28359 Bremen, Germany 1 2 Abstract This is a comprehensive compilation...Synthetic 1.9349 SiO2 coesite Synthetic 1.594 SiO2 cristobalite 1.487 SiO2 quartz Zambia 1.5444 SiO2 quartz...(OH)12∙6H2O Maroldsweisach, Franconia, Bavaria, Germany ThO2 Synthetic 2.105 2.105 2.105 2.105 2.078 1...3533 2.321 1.4 33.27 16.64 7.082 Larsen (1921) Germany Fe3+O(OH) goethite Restormel Royal 2.275 2.409...Australia cobalt-korignite Saxony, Erzgebirge, Germany Arsenates (Co0.68Zn0.24Cu0.02Fe0.01Ni0.01)S0.96AsO3OH∙H2O |  | | Journal (article/letter/editorial) | | Göttingen, Goldschmidtstraße 1, 37077 Göttingen, Germany 3 Department of Geography and Geology, University...INVESTIGATIONS IN THE SYSTEM CaO-Al2O3-ZnO Albertus, M.1, Kahlenberg, V.1 University of Innsbruck, Institute of Mineralogy... Chemnitzer Straße 40, 09599 Freiberg/Saxony, Germany 3 Geological Survey of Austria, Department of Mineral...Erlangen University, Schlossplatz 4, 91054 Erlangen, Germany e-mail: thomas.angerer@uibk.ac.at Investigating...Geosciences, Adenauerring 20b, 76131 Karlsruhe, Germany 4 University of Szeged, Dept. of Mineralogy, Geochemistry |  | Pekov, Igor V., Zubkova, Natalia V., Zolotarev, Andrey A., Yapaskurt, Vasiliy O., Krivovichev, Sergey V., Belakovskiy, Dmitry I., Lykova, Inna, Vigasina, Marina F., Kasatkin, Anatoly V., Sidorov, Evgeny G., Pushcharovsky, Dmitry Yu. (2021) Dioskouriite, CaCu4Cl6(OH)4·4H2O: A New Mineral Description, Crystal Chemistry and Polytypism. Minerals, 11 (1) 90 doi:10.3390/min11010090 | Journal (article/letter/editorial) | | capped kagomé geometry can be derived from the cristobalite- or pyrochlore-type arrangement of Cu atoms...from the Bellerberg, East-Eifel volcanic area, Germany. N. Jb. Mineral. Abh. 2018, 195, 79–86. [CrossRef]...calculations. Can. Mineral. 1995, 33, 1177–1188. Kahlenberg, V. On the crystal structure of K2 Cu5 Cl8 (OH)4 |  | | Book | | feldspars. - The deposit of Geisenheim (Rheingau, Germany) is formed from a quartz keratophyre massif, the...(1959) on the Kaiserstuhl in the Black Forest (Germany). Innumerable studies show also neoformations of...on this important question. Since the time of KAHLENBERG and LINCOLN (1898) geologists have not ceased...had already demonstrated the basic errors of KAHLENBERG and LINCOLN. Likewise CoRRENS (1941) was able...(1961); solubilities of three samples of quartz, cristobalite and opal are shown in figure 61 in comparison |  | | Journal (article/letter/editorial) | | has been synthesized (Baur and Fischer, 2000; Kahlenberg et al., 2001). The crystal structure of LiAlSiO4·H2O...Journal of Solid State Chemistry, 183, 2305 2308. Kahlenberg, V., Fischer, R.X. and Baur, W.H. (2001) Symmetry...rigid-unit-mode analysis of dynamic disorder in quartz, cristobalite and amorphous silica. Journal of Physics of |  | | Report (volume) | | of RMC modelling to the phase transition in cristobalite Application of RMC modelling to the phase transition...Summary STRUCTURAL PHASE TRANSITIONS transition in cristobalite quartz Cryolite (Na3AIF6 ) Order Parameters:...(Taken from Hammonds et al. 1996.) k Quartz Cristobalite Tridymite Sanidine Leucite Cordierite P6...seen in a lattice dynamics calculation for β-cristobalite, where all the RUMs for wave vectors along symmetry...be proportional to S(Q) = ∫ S(Q,ω ) d ω ∝ β-cristobalite, [0,0,1] kBT ω2 HP-tridymite, [1, 1 ,0] |  | | Journal (volume) | | early Wealden type. , Similarly in the Wealden of Germany we may arbitrarily declare that the reverse holds...quartz and tridymite and between tridymite and cristobalite. The appearance of unstable phases. Suggested...obtained. Natural occurrences of tridymite and cristobalite. Effect of pressure upon the quartz-tridymite...properties of artificial quartz, tridymite, and cristobalite. Preparation of quartz in aqueous solution...General observations on the quartz-tridymite-cristobalite inversions. Low temperature inversions. Relations |  | | Book | | zeolite mineralogy was done, at that time, in Germany, Italy, France, and Great Britain. Because of differences...hemispherical front-lens. Type Locality: H(lwenegg, Hegau, Germany Nomenclature: From its framework structure and...combination with {110} and {OIl} is found only at Hegau, Germany (Figs. 15,18,26,27) while {WI} and {OW} in combination...15 MODIFIED HABIT MONOCLINIC ORIENTATION HEGAU,GERMANY Fig. 18 COMMON HABIT MONOCLINIC ORIENTATION ALL...TWINNING ON (011) HEGAU, GERMANY or (110) 010 TWINNING ON (011) HEGAU, GERMANY 1~:"'oTI Fig. 24 MODIFIED | | | Book | | zeolite mineralogy was done, at that time, in Germany, Italy, France, and Great Britain. Because of differences...hemispherical front-lens. Type Locality: H(lwenegg, Hegau, Germany Nomenclature: From its framework structure and...combination with {110} and {OIl} is found only at Hegau, Germany (Figs. 15,18,26,27) while {WI} and {OW} in combination...15 MODIFIED HABIT MONOCLINIC ORIENTATION HEGAU,GERMANY Fig. 18 COMMON HABIT MONOCLINIC ORIENTATION ALL...TWINNING ON (011) HEGAU, GERMANY or (110) 010 TWINNING ON (011) HEGAU, GERMANY 1~:"'oTI Fig. 24 MODIFIED |
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