Pyrophyllite Chemical: Al2Si4O10(OH)2. Clades: 2:1 clay minerals (TOT); Phyllosilicates; Silicate minerals; Lapidae. rom Related postsAmmonium causticumMarch 10, 2019Pteleopsis suberosaMarch 10, 2019UncertaintyMarch 10, 2019 Previous postLizarditeNext postIllite