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  • 1
    Call number: 11/M 07.0430
    In: Reviews in mineralogy & geochemistry
    Description / Table of Contents: Over 25 years ago, Volume 9 of Reviews in Mineralogy: Amphiboles and Other Hydrous Pyriboles seemed to contain all that was possible to know about this group of fascinating minerals. The subsequent twenty-five years have shown that this assessment was wrong: Nature was keeping a lot in reserve, and has since revealed considerable new complexity in the constitution and behavior of amphiboles. Some of the advances in knowledge have been due to the use of new experimental techniques, some have been due to the investigation of hitherto neglected rock-types, and some have been due to the development of new ideas. The identification and systematic investigation of variable LLE (Light Lithophile Elements), particularly Li and H, led to the identification of several new amphibole species and the recognition that variable Li and H play an important role in chemical variations in amphiboles from both igneous and metamorphic parageneses. In turn, this work drove the development of microbeam SIMS to analyze LLE in amphiboles. Detailed mineralogical work on metasyenites showed hitherto unexpected solid-solution between Na and Li at the M(4) site in monoclinic amphiboles, a discovery that has upset the current scheme of amphibole classification and nomenclature and initiated new efforts in this direction. Systematic and well-planned synthesis of amphiboles, combined with careful spectroscopy, has greatly furthered our understanding of cation and anion order in amphiboles. The use of bond-valence theory to predict patterns of SRO (Short-Range Order) in amphiboles, and use of these predictions to understand the infrared spectra of well-characterized synthetic-amphibole solid-solutions, has shown that SRO is a major feature of the amphibole structure, and has resulted in major advances in our understanding of SRO in minerals. There has been significant progress relating changes in amphibole composition and cation ordering to petrogenetic conditions and trace-element behavior. Work on the nature of fibrous amphiboles and their toxicity and persistence in living organisms has emphasized the importance of accurate mineralogical characterization in environmental and health-related problems. The current volume has taken a different approach from previous volumes concerned with major groups of rock-forming minerals. Some of the contents have previously been organized by the investigative technique or groups of similar techniques: crystal-structure refinement, spectroscopy, TEM etc. Here, we have taken an approach that focuses on aspects of amphiboles rather than experimental techniques: crystal chemistry, new compositions, long-range order, short-range order etc., and all experimental results germane to these topics are discussed in each chapter. The intent of this approach is to focus on amphiboles, and to emphasize that many techniques are necessary to fully understand each aspect of the amphiboles and their behavior in both natural and industrial processes.
    Type of Medium: Monograph available for loan
    Pages: XV, 545 S. , graph. Darst.
    ISBN: 0-939950-79-0 , 978-0-939950-79-9
    ISSN: 1529-6466
    Series Statement: Reviews in mineralogy & geochemistry 67
    Classification:
    Geochemistry
    Note: Chapter 1. Amphiboles: Crystal Chemistry by Frank C. Hawthorne and Roberta Oberti, p. 1 - 54 Chapter 2. Classification of the Amphiboles by Frank C. Hawthorne and Roberta Oberti, p. 55 - 88 Chapter 3. New Amphibole Compositions: Natural and Synthetic by Roberta Oberti, Giancarlo Della Ventura, and Fernando Cámara, p. 89 - 124 Chapter 4. Long-Range Order in Amphiboles by Roberta Oberti, Frank C. Hawthorne, Elio Cannillo, and Fernando Cámara, p. 125 - 172 Chapter 5. Short-Range Order in Amphiboles by Frank C. Hawthorne and Giancarlo Della Ventura, p. 173 - 222 Chapter 6. Non-Ambient in situ Studies of Amphiboles by Mark D. Welch, Fernando Camara, Giancarlo Della Ventura, and Gianluca Iezzi, p. 223 - 260 Chapter 7. The Synthesis and Stability of Some End-Member Amphiboles by Bernard W. Evans, p. 261 - 286 Chapter 8. The Significance of the Reaction Path in Synthesizing Single-Phase Amphibole of Defined Composition by Walter V. Maresch and Michael Czank, p. 287 - 322 Chapter 9. Amphiboles in the Igneous Environment by Robert F. Martin, p. 323 - 358 Chapter 10. Metamorphic Amphiboles: Composition and Coexistence by John C. Schumacher, p. 359 - 416 Chapter 11. Trace-Element Partitioning Between Amphibole and Silicate Melt by Massimo Tiepolo, Roberta Oberti, Alberto Zanetti, Riccardo Vannucci, and Stephen F. Foley, p. 417 - 452 Chapter 12. Amphiboles: Environmental and Health Concerns by Mickey E. Gunter, Elena Belluso, and Annibale Mottana, p. 453 - 516 Chapter 13. Amphiboles: Historical Perspective by Curzio Cipriani, p. 517 - 546
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  • 2
    Description / Table of Contents: Over 25 years ago, Volume 9 of Reviews in Mineralogy: Amphiboles and Other Hydrous Pyriboles seemed to contain all that was possible to know about this group of fascinating minerals. The subsequent twenty-five years have shown that this assessment was wrong: Nature was keeping a lot in reserve, and has since revealed considerable new complexity in the constitution and behavior of amphiboles. Some of the advances in knowledge have been due to the use of new experimental techniques, some have been due to the investigation of hitherto neglected rock-types, and some have been due to the development of new ideas. The identification and systematic investigation of variable LLE (Light Lithophile Elements), particularly Li and H, led to the identification of several new amphibole species and the recognition that variable Li and H play an important role in chemical variations in amphiboles from both igneous and metamorphic parageneses. In turn, this work drove the development of microbeam SIMS to analyze LLE in amphiboles. Detailed mineralogical work on metasyenites showed hitherto unexpected solid-solution between Na and Li at the M(4) site in monoclinic amphiboles, a discovery that has upset the current scheme of amphibole classification and nomenclature and initiated new efforts in this direction. Systematic and well-planned synthesis of amphiboles, combined with careful spectroscopy, has greatly furthered our understanding of cation and anion order in amphiboles. The use of bond-valence theory to predict patterns of SRO (Short-Range Order) in amphiboles, and use of these predictions to understand the infrared spectra of well-characterized synthetic-amphibole solid-solutions, has shown that SRO is a major feature of the amphibole structure, and has resulted in major advances in our understanding of SRO in minerals. There has been significant progress relating changes in amphibole composition and cation ordering to petrogenetic conditions and trace-element behavior. Work on the nature of fibrous amphiboles and their toxicity and persistence in living organisms has emphasized the importance of accurate mineralogical characterization in environmental and health-related problems. The current volume has taken a different approach from previous volumes concerned with major groups of rock-forming minerals. Some of the contents have previously been organized by the investigative technique or groups of similar techniques: crystal-structure refinement, spectroscopy, TEM etc. Here, we have taken an approach that focuses on aspects of amphiboles rather than experimental techniques: crystal chemistry, new compositions, long-range order, short-range order etc., and all experimental results germane to these topics are discussed in each chapter. The intent of this approach is to focus on amphiboles, and to emphasize that many techniques are necessary to fully understand each aspect of the amphiboles and their behavior in both natural and industrial processes.
    Pages: Online-Ressource (XXV, 545 Seiten)
    ISBN: 0939950790
    Language: English
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  • 3
    Electronic Resource
    Electronic Resource
    s.l. : American Chemical Society
    The @journal of organic chemistry 45 (1980), S. 1209-1213 
    ISSN: 1520-6904
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
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  • 4
    ISSN: 1572-901X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
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  • 5
    Publication Date: 2018
    Description: 〈div data-abstract-type="normal"〉〈p〉The complete mineral description of potassic-magnesio-arfvedsonite, a recently approved (IMA2016-083) new species of the amphibole supergroup is provided using electron microprobe analysis (EMPA), laser ablation inductively coupled plasma mass spectrometry, single-crystal structure refinement, Mössbauer and Raman spectroscopy, as well as measurement of optical and physical properties. The holotype material was found in syenitic and granitic dyke rocks in association with quartz, potassium feldspar and aegirine–augite from the Buhovo–Seslavtsi pluton, Bulgaria. Potassic-magnesio-arfvedsonite is monoclinic 〈span〉C2/m〈/span〉, with unit-cell parameters: 〈span〉a〈/span〉 = 9.9804(11), 〈span〉b〈/span〉 = 18.0127(19), 〈span〉c〈/span〉 = 5.2971(6) Å, β = 104.341(2)° and 〈span〉V〈/span〉 = 922.61 Å〈span〉3〈/span〉. In transmitted plane-polarised light (λ = 590 cm〈span〉–1〈/span〉), potassic-magnesio-arfvedsonite is pleochroic: 〈span〉X〈/span〉 = yellow pale-green, 〈span〉Y〈/span〉 = green and 〈span〉Z〈/span〉 = dark-violet brown. It is biaxial (–), α = 1.645(2), β = 1.655(2), γ = 1.660(2) and 2V〈span〉meas.〈/span〉 = 60° and 2V〈span〉calc.〈/span〉 = 70°. The empirical unit formula obtained from EMPA and structure refinement is 〈span〉A〈/span〉(K〈span〉0.86〈/span〉Na〈span〉0.0.08〈/span〉)〈span〉0.94〈/span〉〈span〉B〈/span〉(Na〈span〉1.74〈/span〉Ca〈span〉0.25〈/span〉 Mn〈span〉2+〈/span〉〈span〉0.01〈/span〉)〈span〉2.00〈/span〉〈span〉C〈/span〉(Mg〈span〉2.67〈/span〉Fe〈span〉2+〈/span〉〈span〉1.42〈/span〉Fe〈span〉3+〈/span〉〈span〉0.76〈/span〉Ti〈span〉0.12〈/span〉Mn〈span〉2+〈/span〉〈span〉0.03〈/span〉)〈span〉5.00〈/span〉〈span〉T〈/span〉Si〈span〉8〈/span〉O〈span〉22〈/span〉〈span〉W〈/span〉(OH〈span〉1.58〈/span〉F〈span〉0.22〈/span〉O〈span〉0.20〈/span〉)〈span〉2.00〈/span〉. The Fe〈span〉3+〈/span〉/Fe〈span〉tot〈/span〉 ratio (0.35) is consistent with both the Mössbauer spectra and the single-crystal structure refinement. The 10 strongest X-ray powder reflections [〈span〉d〈/span〉 values (in A°), 〈span〉I〈/span〉, (〈span〉hkl〈/span〉)] are: 8.519, 80.5, (110); 3.402, 67.3, (131); 3.295, 41.0, (240); 3.173, 65.0, (310); 2.752, 35.6, (〈span〉〈span〉〈img data-mimesubtype="gif" data-type="simple" src="http://static.cambridge.org/resource/id/urn:cambridge.org:id:binary:20190709073523038-0660:S0026461X18001354:S0026461X18001354_inline1.gif"〉 〈span data-mathjax-type="texmath"〉 〈/span〉 〈/span〉〈/span〉31); 2.715, 100.0 (151); 2.591, 44.1, (061); 2.542, 73.2, (〈span〉〈span〉〈img data-mimesubtype="gif" data-type="simple" src="http://static.cambridge.org/resource/id/urn:cambridge.org:id:binary:20190709073523038-0660:S0026461X18001354:S0026461X18001354_inline2.gif"〉 〈span data-mathjax-type="texmath"〉 〈/span〉 〈/span〉〈/span〉02); 2.348, 38.5, (〈span〉〈span〉〈img data-mimesubtype="gif" data-type="simple" src="http://static.cambridge.org/resource/id/urn:cambridge.org:id:binary:20190709073523038-0660:S0026461X18001354:S0026461X18001354_inline3.gif"〉 〈span data-mathjax-type="texmath"〉 〈/span〉 〈/span〉〈/span〉51); 2.174, 42.0, (261). Potassic-magnesio-arfvedsonite is the product of strongly peralkaline and potassic (perpotassic) magma compositions. Trace-element analysis shows that this amphibole did not exert significant control on trace-element distribution in the crystallising peralkaline magma.〈/p〉〈/div〉
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  • 6
    Publication Date: 2018
    Description: 〈div data-abstract-type="normal"〉〈p〉Ferri-fluoro-katophorite is the second species characterised involving the rootname katophorite in the sodium–calcium subgroup of the amphibole supergroup. The mineral and its name were approved by the International Mineralogical Association Commission on New Minerals, Nomenclature and Classification, IMA2015-096. It was found in the Bear Lake diggings, Bancroft area, Ontario, Canada, where coarse euhedral crystals of amphibole, phlogopite, sanidine solid-solution (now coarsely exsolved to microcline perthite), titanite, augite, zircon and fluorapatite crystallised from a low-viscosity silicocarbonatitic magma of crustal origin. Greenish grey prismatic crystals of ferri-fluoro-katophorite generally protrude from the walls into a body of coarsely crystalline calcite, but they also occur away from the walls, completely enclosed by calcite. The empirical formula derived from electron microprobe analysis and single-crystal structure refinement is: 〈span〉A〈/span〉(Na〈span〉0.55〈/span〉K〈span〉0.32〈/span〉)〈span〉Σ0.87〈/span〉〈span〉B〈/span〉(Na〈span〉0.79〈/span〉Ca〈span〉1.18〈/span〉Mn〈span〉2+〈/span〉〈span〉0.03〈/span〉)〈span〉Σ2.00〈/span〉〈span〉C〈/span〉(Mg〈span〉3.29〈/span〉Mn〈span〉2+〈/span〉〈span〉0.02〈/span〉Fe〈span〉2+〈/span〉〈span〉1.19〈/span〉Fe〈span〉3+〈/span〉〈span〉0.31〈/span〉Al〈span〉0.09〈/span〉Ti〈span〉4+〈/span〉〈span〉0.08〈/span〉Li〈span〉0.02〈/span〉)〈span〉Σ5.00〈/span〉〈span〉T〈/span〉(Si〈span〉7.39〈/span〉Al〈span〉0.61〈/span〉)〈span〉Σ8.00〈/span〉O〈span〉22〈/span〉〈span〉W〈/span〉[F〈span〉1.23〈/span〉 (OH)〈span〉0.77〈/span〉]〈span〉Σ2.00〈/span〉. Ferri-fluoro-katophorite is biaxial (–), with α = 1.640(2), β = 1.652(2), γ = 1.658(2), 2V〈span〉meas.〈/span〉 = 68.9(2)° and 2V〈span〉calc.〈/span〉. = 70.1°. The unit-cell parameters are 〈span〉a〈/span〉 = 9.887(3), 〈span〉b〈/span〉 = 18.023(9), 〈span〉c〈/span〉 = 5.292(2) Å, β = 104.66(3)°, 〈span〉V〈/span〉 = 912.3(6) Å〈span〉3〈/span〉, 〈span〉Z〈/span〉 = 2 and space group 〈span〉C〈/span〉2/〈span〉m〈/span〉. The strongest ten lines in the powder X-ray pattern [〈span〉d〈/span〉 values (in Å) 〈span〉I〈/span〉 (〈span〉hkl〈/span〉)] are: 2.708, 100, (151); 2.388, 74, (131); 3.139, 72, (310); 8.449, 69, (110); 2.540, 65, (〈span〉〈span〉〈img data-mimesubtype="gif" data-type="simple" src="http://static.cambridge.org/resource/id/urn:cambridge.org:id:binary:20190709073523038-0660:S0026461X18001305:S0026461X18001305_inline1.gif"〉 〈span data-mathjax-type="texmath"〉 〈/span〉 〈/span〉〈/span〉02); 2.591, 53, (061); 2.739, 47, (〈span〉〈span〉〈img data-mimesubtype="gif" data-type="simple" src="http://static.cambridge.org/resource/id/urn:cambridge.org:id:binary:20190709073523038-0660:S0026461X18001305:S0026461X18001305_inline2.gif"〉 〈span data-mathjax-type="texmath"〉 〈/span〉 〈/span〉〈/span〉31); 2.165, 45, (261); 3.279, 44, (〈span〉〈span〉〈img data-mimesubtype="gif" data-type="simple" src="http://static.cambridge.org/resource/id/urn:cambridge.org:id:binary:20190709073523038-0660:S0026461X18001305:S0026461X18001305_inline3.gif"〉 〈span data-mathjax-type="texmath"〉 〈/span〉 〈/span〉〈/span〉40); 2.341, 43, (〈span〉〈span〉〈img data-mimesubtype="gif" data-type="simple" src="http://static.cambridge.org/resource/id/urn:cambridge.org:id:binary:20190709073523038-0660:S0026461X18001305:S0026461X18001305_inline4.gif"〉 〈span data-mathjax-type="texmath"〉 〈/span〉 〈/span〉〈/span〉51).〈/p〉〈/div〉
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  • 7
    Publication Date: 2018
    Description: 〈div data-abstract-type="normal"〉〈p〉Magnesio-hornblende (IMA2017-059) has been characterized in a specimen collected in the sand dunes of Lüderitz, Karas Region, Namibia. The empirical formula derived from electron microprobe analysis and single-crystal structure refinement is 〈span〉A〈/span〉(□〈span〉0.73〈/span〉Na〈span〉0.22〈/span〉K〈span〉0.05〈/span〉)〈span〉Σ1.00〈/span〉〈span〉B〈/span〉(Ca〈span〉1.79〈/span〉Fe〈span〉2+〈/span〉〈span〉0.10〈/span〉Mg〈span〉0.04〈/span〉Mn〈span〉2+〈/span〉〈span〉0.03〈/span〉Na〈span〉0.04〈/span〉)〈span〉Σ2.00〈/span〉〈span〉C〈/span〉(Mg〈span〉3.48〈/span〉Fe〈span〉2+〈/span〉〈span〉0.97〈/span〉Al〈span〉0.28〈/span〉Fe〈span〉3+〈/span〉〈span〉0.23〈/span〉Cr〈span〉3+〈/span〉〈span〉0.01〈/span〉Ti〈span〉0.03〈/span〉)〈span〉Σ5.00〈/span〉〈span〉T〈/span〉(Si〈span〉7.18〈/span〉Al〈span〉0.82〈/span〉)〈span〉Σ8.00〈/span〉O〈span〉22〈/span〉〈span〉W〈/span〉[(OH)〈span〉1.93〈/span〉F〈span〉0.05〈/span〉Cl〈span〉0.02〈/span〉]〈span〉Σ2.00〈/span〉. Magnesio-hornblende is biaxial (–), with α = 1.640(2), β = 1.654(2), γ = 1.666(2) (measured with gel-filtered Na light, λ = 589.9 nm), 2V (meas.) = 82(1)° and 2V (calc.) = 84.9°. The unit-cell parameters are 〈span〉a〈/span〉 = 9.8308(7), 〈span〉b〈/span〉 = 18.0659(11), 〈span〉c〈/span〉 = 5.2968(4) Å, β = 104.771(6)° and 〈span〉V〈/span〉 = 909.64 (11) Å〈span〉3〈/span〉 with 〈span〉Z〈/span〉 = 2 and space group 〈span〉C〈/span〉2/〈span〉m〈/span〉. The strongest eight reflections in the X-ray powder pattern [〈span〉d〈/span〉 values (in Å), 〈span〉I〈/span〉, (〈span〉hkl〈/span〉)] are: 2.709, 100, (151); 8.412, 74, (110); 3.121, 73, (310); 2.541, 58, (〈span〉〈span〉〈img data-mimesubtype="gif" data-type="simple" src="http://static.cambridge.org/resource/id/urn:cambridge.org:id:binary:20190128104130349-0707:S0026461X18000993:S0026461X18000993_inline1.gif"〉 〈span data-mathjax-type="texmath"〉 〈/span〉 〈/span〉〈/span〉02); 3.386, 49, (131); 2.596, 45, (061); 2.338, 41, (〈span〉〈span〉〈img data-mimesubtype="gif" data-type="simple" src="http://static.cambridge.org/resource/id/urn:cambridge.org:id:binary:20190128104130349-0707:S0026461X18000993:S0026461X18000993_inline2.gif"〉 〈span data-mathjax-type="texmath"〉 〈/span〉 〈/span〉〈/span〉51); and 2.164, 39, (261).〈/p〉〈/div〉
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  • 8
    Publication Date: 2018
    Description: 〈div data-abstract-type="normal"〉 〈p〉In this work we report on a complete crystal-chemical characterization of a near end-member riebeckite from Malawi, and use the available data to critically compare information obtained from different analytical methods. The sample occurs as well-formed and very large single crystals in pegmatitic rocks. Accurate site-populations were determined by combining single-crystal structure refinement and electron microprobe analysis (EMPA). The Fe〈span〉3+〈/span〉/Fe〈span〉2+〈/span〉 ratio was obtained from Mössbauer spectroscopy. Lithium was quantified by Laser Ablation Inductively Coupled Plasma Mass Spectroscopy (LA-ICP-MS).〈/p〉 〈p〉Fourier-Transform Infrared (FTIR) spectra, collected both on powders and single crystals, are presented and discussed. FTIR spectra in the NIR region are also presented for the first time for this amphibole. The FTIR data are compatible with complete local ordering of A cations close to F, and complete Fe〈span〉2+〈/span〉/Mg disorder at 〈span〉M〈/span〉(1,3). Polarized Raman-scattering data collected from single crystals confirm this conclusion. In addition, it was found that FTIR data collected on powders provide the best agreement with the site occupancies derived from chemical (EMPA and LA-ICP-MS) and crystal-chemical data, possibly because they do not depend on experimental issues such as orientation and polarization.〈/p〉 〈/div〉
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