Skip to Main Content
GEOREF RECORD

An X-ray powder diffraction study of synthetic (Fe,Mn) (sub 2) TiO (sub 4) spinel

Ingo K. Sedler, Anne Feenstra and Tjerk Peters
An X-ray powder diffraction study of synthetic (Fe,Mn) (sub 2) TiO (sub 4) spinel
European Journal of Mineralogy (December 1994) 6 (6): 873-885

Abstract

EPMA examination of these spinels synthesized in 10 mol. % steps at 950 degrees C, 1 kbar and log fO (sub 2) -16.30 showed that they are all homogeneous but contain a small magnetite component in solid solution. XRD showed that the solid solution is continuous at 950 degrees C, all members having the cubic space group Fd3m; a increases linearly from 8.53374 Aa for ulvoespinel to 8.68063 Aa for the Mn end-member. The whole Fe-Mn ulvoespinel solid solution is 82-92% inverse at 950 degrees C. Calculated tetrahedral oxygen bond lengths increase from 1.999 Aa for Fe (sub 2) TiO (sub 4) to 2.079 Aa with X (sub Mn) .


ISSN: 0935-1221
Serial Title: European Journal of Mineralogy
Serial Volume: 6
Serial Issue: 6
Title: An X-ray powder diffraction study of synthetic (Fe,Mn) (sub 2) TiO (sub 4) spinel
Affiliation: Universitaet Bern, Mineralogische-petrographisches Institut, Berne, Switzerland
Pages: 873-885
Published: 199412
Text Language: English
Publisher: Schweizerbart'sche Verlagsbuchhandlung (Naegele u. Obermiller), Stuttgart, Federal Republic of Germany
References: 40
Accession Number: 1995-007441
Categories: Mineralogy of non-silicates
Document Type: Serial
Bibliographic Level: Analytic
Illustration Description: illus. incl. 5 tables
Country of Publication: Germany
Secondary Affiliation: GeoRef, Copyright 2017, American Geosciences Institute. Reference includes data from Mineralogical Abstracts, United KingdomTwickenhamUKUnited Kingdom
Update Code: 199503
Close Modal
This Feature Is Available To Subscribers Only

Sign In or Create an Account

Close Modal
Close Modal