Psammite (Greek psammos, sand) is a general term for sandstone. It is equivalent to the Latin-derived term arenite. Also, it is commonly used in various publications to describe a metamorphosed sedimentary rock with a dominantly sandstone protolith. In Europe, this term was formerly used for a fine-grained, fissile, clayey sandstone. Pettijohn giv... Found on http://en.wikipedia.org/wiki/Psammite
Psam'mite noun [ Greek ... sandy, from ... sand: confer French psammite .] (Min.) A species of micaceous sandstone. -- Psam*mit'ic adjective Found on http://www.encyclo.co.uk/webster/P/186