Project

Back to overview

Crystal Chemistry of Minerals

English title Crystal Chemistry of Minerals
Applicant Armbruster Thomas
Number 134617
Funding scheme Project funding (Div. I-III)
Research institution Institut für Geologie Universität Bern
Institution of higher education University of Berne - BE
Main discipline Mineralogy
Start/End 01.05.2011 - 30.04.2015
Approved amount 292'155.00
Show all

All Disciplines (2)

Discipline
Mineralogy
Inorganic Chemistry

Keywords (7)

mineral; crystal structure; zeolite; dehydration; X-ray diffraction; crystal chemistry; crystallography

Lay Summary (English)

Lead
Lay summary

The crystal structure and its relation to the chemical composition will be investigated for two specific groups:


(a) Zeolites are porous tetrahedral framework structures containing additional extraframework water and cations in channels and cages. Various zeolite minerals will be "in situ" dehydrated by stepwise heating until structural breakdown occurs. The influence of heat treatment associated with partial dehydration upon the structural framework will be monitored by single-crystal X-ray diffraction methods (PhD project).


rich rock samples and structurally analyzed applying single-crystal X-ray diffraction methods.2(b) Calcium silicates and related minerals with additional components, analogues to crystalline components in cements and ceramic materials, are found in nature in larger crystals than in technical products. This enables structural characterization of technological important crystalline materials. Corresponding crystals will be isolated from CaO-SiO

Direct link to Lay Summary Last update: 21.02.2013

Responsible applicant and co-applicants

Employees

Publications

Publication
De- and re-hydration of scolecite revisited: An in situ single-crystal X-ray study under low and high humidity conditions
Cametti Georgia, Danisi Rosa Micaela, Armbruster Thomas, Nagashima Mariko (2015), De- and re-hydration of scolecite revisited: An in situ single-crystal X-ray study under low and high humidity conditions, in Microporous Mesoporous Materials, 208, 171-180.
Elastic behavior and pressure-induced structural modifications of the microporous Ca(VO)Si4O10 4H2O dimorphs cavansite and pentagonite
Danisi Rosa (2015), Elastic behavior and pressure-induced structural modifications of the microporous Ca(VO)Si4O10 4H2O dimorphs cavansite and pentagonite, in Microporous Mesoporous Materials, 204, 257-268.
Mayenite supergroup, part I: Recommended nomenclature
Galuskin Evgeny, Gfeller Frank, Gluskina Irina, Armbruster Thomas (2015), Mayenite supergroup, part I: Recommended nomenclature, in European Journal of Mineralogy, 27, 99-111.
Mayenite supergroup, part IV: Crystal structure and Raman investigation of Al-free eltyubyuite from the Shadil-Khokh volcano, Kel’ Plateau, Southern Ossetia, Russia
Gfeller Frank, Srodek Dorota, Kusz Joachim, Gazeev Victor, Galuskina Irina, Galuskin Evgeny, Armbruster Thomas (2015), Mayenite supergroup, part IV: Crystal structure and Raman investigation of Al-free eltyubyuite from the Shadil-Khokh volcano, Kel’ Plateau, Southern Ossetia, Russia, in European Journakl of Mineralogy, 27, 137-143.
Structural intergrowth of merlinoite/phillipsite and its temperature-dependent dehydration behaviour: a single-crystal X-ray study
Danisi Rosa, Armbruster Thomas, Nagashima Mariko (2015), Structural intergrowth of merlinoite/phillipsite and its temperature-dependent dehydration behaviour: a single-crystal X-ray study, in Mineralogical Magazine, 79(1), 193-203.
Superspace description of wagnerite-group minerals (Mg,Fe,Mn)2(PO4)2(F,OH)
Lazic Biljana, Armbruster Thomas, Chopin Christian, Grew Edward, Baronnet Alain, Palatinus Lukas (2014), Superspace description of wagnerite-group minerals (Mg,Fe,Mn)2(PO4)2(F,OH), in Acta Crystallographica, B70, 243-258.
High-temperature induced dehydration, phase transition and exsolution in amicite: A single-crystal X-ray study. Microporous and Mesoporous Material
Pakhomova, Anna, Danisi Rosa Micaela, Gfeller Frank, Krivovichev Sergey, Yakovenchuk Victor (2013), High-temperature induced dehydration, phase transition and exsolution in amicite: A single-crystal X-ray study. Microporous and Mesoporous Material, in . Microporous and Mesoporous Material, 18, 207-219.
Topotactic transformation and dehydration of the zeolite gismondine to a novel Ca feldspar structure
Wadoski-Romeijn Eva, Armbruster Thomas (2013), Topotactic transformation and dehydration of the zeolite gismondine to a novel Ca feldspar structure, in American Mineralogist, 98, 1988-1997.
Hydrogen-bond system and dehydration behavior of the natural zeolite parthéite
BILJANA LAZIC1 THOMAS ARMBRUSTER1 AND BERNARD W. LIEBICH2 LUKAS PERFELER3 (2012), Hydrogen-bond system and dehydration behavior of the natural zeolite parthéite, in American Mineralogist, 97, 1866-1873.
Dehydration of the natural zeolite goosecreekite CaAl2Si6O16•5H2O upon stepwise heating: A single-crystal and powder X-ray study.
Wadoski E. Armbruster T. Lazic B. Fisch M. (2011), Dehydration of the natural zeolite goosecreekite CaAl2Si6O16•5H2O upon stepwise heating: A single-crystal and powder X-ray study., in American Mineralogist, 96, 1070-1078.
Chiavennite revisited: a temperature dependent in situ single crystal X-ray diffraction study
Cametti Georgia, Armbruster Thomas, Chiavennite revisited: a temperature dependent in situ single crystal X-ray diffraction study, in European Journal of Mineralogy.

Collaboration

Group / person Country
Types of collaboration
Galuskin, Evgeny/Faculty of Science Sosnowiec Poland (Europe)
- in-depth/constructive exchanges on approaches, methods or results
- Publication
Gatta, Diego/Dipartimento di Scienze della Terra, Università degli Studi di Milano, via Botticelli 2 Italy (Europe)
- in-depth/constructive exchanges on approaches, methods or results
- Publication
- Research Infrastructure

Scientific events

Active participation

Title Type of contribution Title of article or contribution Date Place Persons involved
Congress of the International Mineralogical Association Talk given at a conference Applied Mineralogy, materials science: Zeolites and porous materials 30.08.2014 Johannesburg, South Africa Danisi Rosa Micaela; Gfeller Frank; Armbruster Thomas;
Workshop on oxide based materials joined with the AIZ (Italian Zeolites Association) Poster In situ dehydration behavior of zeolite-like pentagonite: A single-crystal X-ray study. 23.09.2013 Turin, Italy Armbruster Thomas; Danisi Rosa Micaela;
First Meeting of the Italian, Spanish and Swiss Crystallographic Associations held at Villa Olmo, Como, Italy. Talk given at a conference In situ dehydration behavior of veszelyite: A single-crystal X-ray study. 09.09.2013 Como, Italy Danisi Rosa Micaela;
European Mineralogical Conference held at Johann Wolfgang Goethe-University, Frankfurt, Germany Talk given at a conference In situ dehydration behavior of zeolite-like cavansite: A single-crystal X-ray study. 02.09.2013 Frankfurt, Germany Armbruster Thomas; Danisi Rosa Micaela;
Goldschmidt2013 Florenz Poster Natural BaCa6[(SiO4)(PO4)](PO4)2F with a New Modular Structure Type 25.08.2013 Florenz, Italy Gfeller Frank;
Annual meeting of Swiss Society for Crystallography Poster Organizer 16.09.2011 Universität Bern, Switzerland Armbruster Thomas; Lazic Biljana;


Associated projects

Number Title Start Funding scheme
121290 Accessories to single-crystal X-ray equipment 01.07.2008 R'EQUIP
122122 Crystal chemistry of minerals 01.12.2008 Project funding (Div. I-III)

Abstract

The crystal structure and its relation to the chemical composition will be investigated for two specific groups:(a) Zeolites are porous tetrahedral framework structures containing additional extraframework water and cations in channels and cages. Various zeolite minerals will be "in situ" dehydrated by stepwise heating until structural breakdown occurs. The influence of heat treatment associated with partial dehydration upon the structural framework will be monitored by single-crystal X-ray diffraction methods (PhD project).(b) Calcium silicates and related minerals with additional components, analogues to crystalline components in cements and ceramic materials, are found in nature in larger crystals than in technical products. This enables structural characterization of technological important crystalline materials. Corresponding crystals will be isolated from CaO-SiO2 rich rock samples and structurally analyzed applying single-crystal X-ray diffraction methods (PhD project).
-