4.6 Article

Characterization of Talcose Rocks Derived from Serpentinite-Pilot Study in the Ultramafic Complex of Cabo Ortegal (Spain) for Potential Use and Commercialization

Journal

APPLIED SCIENCES-BASEL
Volume 13, Issue 22, Pages -

Publisher

MDPI
DOI: 10.3390/app132212183

Keywords

talc; serpentinite; health risks; Cabo Ortegal Geopark; degraded demographic area

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Cabo Ortegal in Spain has been designated as a UNESCO Global Geopark due to its unique geology. The area contains various types of rocks, including serpentinites and talcose rocks, which have significant importance and potential applications. However, caution should be taken regarding the presence of asbestos and heavy metals in the talcose rocks, as they can pose health risks.
Cabo Ortegal, in Spain, was declared a UNESCO Global Geopark in 2023. An ultramafic complex makes it a geologically exciting unit, where many research works have been carried out. Serpentinites, formed by the weathering of peridotites, dunites, and other ultramafic rocks, have been described in detail in previous works. Their role as a construction material has been elucidated, although due to their complexity and heterogeneity, the results of using these materials for construction are not always successful. Talcose rocks, related to serpentinites, can also be found in the complex, although it is difficult to distinguish them. Talcose rocks may be a resource to be explored and exploited in an unpopulated area. The use of talc in pharmaceuticals, cosmetics, and handicrafts makes it a material of growing importance. However, the asbestos and heavy metal content should be severely limited to prevent health issues. The goal of this work is to start the characterization of these talcose rocks before promoting their potential use in different contexts to support the economy of an underpopulated area of Spain.

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