ˌpīrōˈfiˌlīt, pīˈräfəˌl- noun
( -s )
Etymology: German pyrophyllit, from pyr- + phyll- + -it -ite
: a mineral AlSi 2 O 5 (OH) that is a usually white or greenish hydrous aluminum silicate, resembles talc, and occurs in a foliated form or in compact masses — compare agalmatolite