Saponite

Description

A montmorillonite type clay. Saponite is composed of hydrated aluminum magnesium silicate. The soft mineral has a greasy or soapy feel. It is used as a filler in crayons.

Synonyms and Related Terms

rock soap; mountain soap; saponita, piedra jabón (Esp.); saponite, pierre à savon (Fr.); pedra-sabão (Port.); Saponit (Deut.); saponiet (Ned.)