Worldwide halloysite deposits, production and market developments
Published: Saturday, 24 January 2015
Halloysite’s main application in ceramics is a traditional market, but new research into high-tech industries such as nanotubes will require scarcer, higher purity material. Ian Wilson* examines some of the main deposits around the world and discusses new opportunities.
By Ian Wilson
Halloysite is a 1:1 aluminosilicate clay mineral
with formula Al2Si2O5
(OH)4. It was named in 1826 after Belgian geologist
Jean Baptiste Julien d’Omalius
d’Halloy, from an occurrence of the mineral
discovered near Liége in Belgium.
The main properties of halloysite are shown in...