A5074384783- Clay minerals and soil interactions
- Crystal Structures and Properties
- Iron oxide chemistry and applications
- Geological and Geochemical Analysis
- Mineralogy and Gemology Studies
- X-ray Diffraction in Crystallography
- Chemical Synthesis and Characterization
- Nuclear materials and radiation effects
- Geochemistry and Geologic Mapping
- Radioactive element chemistry and processing
- Layered Double Hydroxides Synthesis and Applications
- Minerals Flotation and Separation Techniques
- Zeolite Catalysis and Synthesis
- Metal Extraction and Bioleaching
- Adsorption and biosorption for pollutant removal
- High-pressure geophysics and materials
- Mesoporous Materials and Catalysis
- Geochemistry and Elemental Analysis
- Concrete and Cement Materials Research
- Heavy metals in environment
- Arsenic contamination and mitigation
- Glass properties and applications
- Polyoxometalates: Synthesis and Applications
- earthquake and tectonic studies
- Extraction and Separation Processes
University of Modena and Reggio Emilia
2014-2023
University of Basilicata
1989-1991
Research Article| January 01, 2002 Mica Crystal Chemistry and the Influence of Pressure, Temperature, Solid Solution on Atomistic Models Maria Franca Brigatti; Brigatti Dipartimento di Scienze della Terra, Università Modena e Reggio Emilia, Via S. Eufemia, 19, I-41100 Modena, Italy, brigatti@unimo.it Search for other works by this author on: GSW Google Scholar Stephen Guggenheim Department Earth Environmental Sciences, University Illinois at Chicago, 845 West Taylor Street, M/C 186, 60607,...
Abstract Chemical and crystallochemical properties of natural dioctahedral Fe-rich smectites formed by weathering basaltic rocks in the Berici-Euganei Area, northern Italy, were investigated. It was found that: (i) b -dimension could be correlated both to Fe 3+ /Σ ratio (Σ = octahedral occupancy) dehydroxylation peak temperature range 400–600°C; (ii) it is not correct impose a total occupancy strictly equal 2 for smectites; (iii) smectite group there continuous isomorphous series as would...
Brindley et al. (1951) reported the earliest efforts to obtain international collaboration on nomenclature and classification of clay minerals, initiated at International Soil Congress in Amsterdam 1950. Since then, national groups were formed, they proposed various changes group meetings Clay Conferences. Most have representation Nomenclature Committee Association Internationale pour l'Etude des Argiles (AIPEA, for Study Clays), which was established 1966. The precursor committee AIPEA...
Abstract The purpose of this report is to describe the appropriate use indices relating crystallinity, such as ‘crystallinity index’, ‘Hinckley ‘Kü bler and ‘Árkai index’. A ‘crystalline’ solid defined a consisting atoms, ions, or molecules packed together in periodic arrangement. index’ purported be measure although there uncertainty about what means (see below). This discusses briefly nature order, disorder crystallinity phyllosilicates why should avoided. If possible, it suggested that...
The crystal structure and M-site populations of a series micas-1M from miarolitic pegmatites that formed within host granitic rocks the Precambrian, anorogenic Pikes Peak batholith, central Colorado, were determined by single-crystal X-ray diffraction data. Crystals fall in polylithionitesiderophyllite- annite field, being 0 ≤ Li 2.82, 0.90 Fetotal 5.00, 0.26 [6]Al 2.23 apfu. Ordering trivalent cations (mainly Al3+) is revealed cis-octahedral site (M2 or M3), which leads to lowering layer...
Other| August 01, 1996 Crystal chemistry and petrologic significance of Fe (super 3+) -rich phlogopite from the Tapira carbonatite complex, Brazil Maria Franca Brigatti; Brigatti Universite di Modena, Dipartimento Scienze della Terra, Italy Search for other works by this author on: GSW Google Scholar Luca Medici; Medici Emilio Saccani; Saccani Carmela Vaccaro Author Article Information Publisher: Mineralogical Society America First Online: 02 Mar 2017 Online ISSN: 1945-3027 Print 0003-004X...
Phengitic muscovite-2M1 crystals [[12](K0.88-0.99Na0.01-0.09Ca0.00-0.06Ba0.00-0.01)[6](Al1.64-1.88Fe2+0.06-0.29Fe3+0.01-0.16Mg0.00-0.16Mn0.00-0.07Ti0.00-0.06)[4](Si2.87-3.30Al0.70-1.13)(OH)1.56-2.07F0.00-0.41O9.91-10.25] from pegmatites and peraluminous granites were refined to investigate the influence of phengitic substitution on mica structure. Single-crystal X-ray diffraction data collected for eleven in C2/c space-group (agreement factor 2.1% ≤ Robs 3.9%). Tetrahedral Si Al cation...
The μ-oxo Fe(III)-phenanthroline complex [(OH2)3(Phen)FeOFe(Phen) (OH2)3]+4 intercalated in montmorillonite provides a stable hybrid material. In this study, the ability and efficiency of material to immobilize thiols gas phase, acting as trap at solid-gas interface, were investigated. Aliphatic containing both hydrophilic hydrophobic end groups chosen test selectivity trap. DR-UV-vis, IR, elemental analysis, thermal analysis evolved mass spectrometry, X-ray powder diffraction, absorption...