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TitleMineralogical investigation of a clay deposit for cosmetic and therapeutic purposes, Baie-St-Ludger, Quebec
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LicencePlease note the adoption of the Open Government Licence - Canada supersedes any previous licences.
AuthorBurton, C A; Percival, J BORCID logo; Saulnier, D
SourceCurrent research 1999-E/Recherches en cours 1999-E; by Geological Survey of Canada; Geological Survey of Canada, Current Research no. 1999-E, 1999 p. 161-168, Open Access logo Open Access
PublisherNatural Resources Canada
Mediapaper; on-line; digital
RelatedThis publication is contained in Current research 1999-E
File formatpdf
AreaBaie-St-Ludger; Manicouagan Peninsula
Lat/Long WENS-68.5000 -68.2500 49.1250 49.0000
Subjectsmineralogy; geochemistry; clays; clay mineralogy; clay minerals; textural analyses; x-ray diffraction analyses; mineralogical analyses; major element analyses; major element geochemistry; Quaternary
Illustrationssketch maps; mineralogical analyses; photographs; particle-size analyses
Released1999 09 01
AbstractSince ancient times, clay materials have been used as cosmetic and therapeutic materials due to their inherent physico-chemical properties. This study reports detailed mineralogical analyses of a clay deposit in Baie-St-Ludger, eastern Quebec, as part of its assessment as a potential cosmetic or therapeutic clay material for external use. The samples were compared to a small suite of commercially available clay products of similar application. These silty-clay to silt marine sediments are dominated by illite (biotitic) and plagioclase feldspar with subordinate amounts of K-feldspar, quartz, and amphibole (hornblende). Chlorite occurs only in minor to trace amounts. The commercial samples generally contain more kaolinite and less non-clay silicates than the field samples. This difference should not be a deterrent for developing this deposit for commercial purposes, as at least one of the commercial products examined is mineralogically similar.

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