The structural formula of talc from the Trimouns Deposit, Pyrénées, France

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Authors:Martin, F.; Micoud, P.; Delmotte, L.; Marichal, C.; Le Dred, R.; de Parseval, P.; Mari, A.; Fortune, J. P.; Salvi, S.; Béziat, D.; Grauby, O.; Ferret, J.
Author Affiliations:Primary:
Université Paul Sabatier, Laboratoire de Minéralogie, Toulouse, France
Ecole Nationale Supérieure de Chimie de Mullhouse, France
Laboratoire de Chimie de Coordinatination, France
Centre de Recherche de la Modélisation et de la Croissanece Cristalline, France
Volume Title:Canadian Mineralogist
Source:The Canadian Mineralogist, Vol.37(Part 4), p.997-1006. Publisher: Mineralogical Association of Canada, Ottawa, ON, Canada. ISSN: 0008-4476
Publication Date:1999
Note:In English with French summary. 43 refs.; illus., incl. 5 tables
Summary:The study of a sample of talc from the Trimouins deposit by FTIR, NMR, e.p.r., Mössbauer, XRD and HRTEM techniques is reported, to investigate the extent of minor substitutions in the tetrahedral and octahedral sites. Substitutions cause a deficiency in tetrahedral charge, compensated by an excess octahedral charge, thus giving electroneutrality to the structure. This charge deficiency in the tetrahedral layer layer explains the active interaction that occurs in industry between talc (used as filler) and polymers. [R.A.H.]
Sections:Crystal structure
Subsections:Specific structures: silicates
Subjects:Crystal chemistry; Crystal structure; Crystal systems; EPR spectra; FTIR spectra; Infrared spectra; Mossbauer spectra; NMR spectra; Polyhedra; Polymerization; Sheet silicates; Silicates; Spectra; Talc; Tetrahedra; X-ray diffraction data; Europe; France; French Pyrenees; Pyrenees; Western Europe; Trimouns Deposit
Abstract Numbers:00M/1280
Record ID:2000018470
Copyright Information:GeoRef, Copyright 2019 American Geosciences Institute. Reference includes data from Mineralogical Abstracts, United Kingdom, Twickenham, United Kingdom
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