nanotubes as anode materials for Li-ion batteries through the selective etching of aluminium oxide and thermal reduction. As a nanofiller in nanocomposite e.g. thermoplastic polyurethane acting on the mechanical, physicochemical and biological properties. Chemistry and mineralogy Typical chemical and mineralogical analyses of two commercial grades of halloysite are: References Phyllosilicates Aluminium minerals Clay minerals group Monoclinic minerals Minerals in space group 9 Luminescent minerals Volcanic soils it:Halloysite