Assessment of three Spanish clays for their use in pelotherapy

Authors: Carretero MI (1) , Pozo M (2) , Legido JL (3) , Fernández-González MV (4) , Delgado R (4) , Gómez I (1) , Armijo F (5) , Maraver F (5)

Affiliations:

(1) Dpto. Cristalografı́a y Mineralogı́a, Facultad de Quı́mica, Universidad de Sevilla (2) Dpto. Geología y Geoquímica, Facultad de Ciencias, Universidad Autónoma de Madrid (3) Departamento de Física Aplicada, Universidade de Vigo (4) Departamento de Edafología y Química Agrícola, Facultad de Farmacia, Universidad de Granada (5) Escuela Profesional de Hidrología Médica, Facultad de Medicina, Universidad Complutense de Madrid

Source: Applied Clay Science Volume 99, September 2014, Pages 131–143

Language: English Countries: Spain Location: Not specified Correspondence address: M.I. Carretero : Dpto. Cristalografía, Mineralogía y Química Agrícola, Facultad de Química, Universidad de Sevilla, C/Prof. García González no 1, 41012 Seville, Spain. Tel.: + 34 954 556327; fax: + 34 954 557140.

Keywords

Article abstract

The mineralogy, geochemistry and physical and physicochemical properties of three Spanish clays and their mixtures with distilled water were determined. These results were compared with the data obtained by other authors for peloids from spas in Spain and Turkey. The main clay minerals of the samples studied were montmorillonite in Clay1, saponite in Clay2 and kerolite–stevensite in Clay3. The results obtained showed that all three clays share some properties with clays already in use, but Clay1 and Clay2, that are quite rich in smectite, are more suitable when the typical smectite features are needed for therapy. The peloid from saponite was the most suitable for thermotherapy while the kerolite–stevensite sample was not suitable for the preparation of peloids for this use.

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