Ann: Exceptional High Grade Halloysite Discovered at Gibraltar, page-52

no, that's what you've done with the one hit of halloysite at north of 50%

there's pages and pages of results there.
0.5% Fe2O3 is almost acceptable depending on TiO2 levels (ceramics)
go count how many Fe2O3 results you get 0.5% or less
I'll save you the effort.
4 or 5
out of pages and pages and pages.
like king said...this isn't what is implied in the ANN and so far, is nothing.
it's not even factually correct. the other cult mob with the ridiculous MC has had a hit of Halloysite in the 90's from their Camel Lake deposit (that they'll never get into)

so the accuracy of reporting is even dodgy.