The moment I saw them advertising a mineral I knew it probably contained aluminum, because it is the third most abundant element in minerals. Sure enough. 12.99% alumina Al2O3 (aluminum oxide) And of course, it's NANO-SIZED! CHEMICAL ANALYSIS OF MAJOR ELEMENTS IN CLINOPTILOLITE ZEOLITE: http://www.safesalt.com.au/clinoptilolitezeolite.html Don't anyone tell them about this, let's see if they ever figure it out for themselves, just save it till the time is right! These goons haven't a clue.