Definition of pyrophyllite
: a soft usually white or greenish mineral that is a hydrous aluminum silicate, resembles talc, occurs in a foliated form or in compact masses, and is used especially in ceramic wares
Origin of pyrophyllite
German Pyrophyllit, from Greek pyr- + phyllon leaf — more at blade
First Known Use: 1830
Learn More about pyrophyllite
Britannica.com: Encyclopedia article about "pyrophyllite"
Seen and Heard
What made you want to look up pyrophyllite? Please tell us where you read or heard it (including the quote, if possible).