[3]Schist is the name given to rocks in which the minerals have a parallel alignment due to reorganization of the rock constituents during a condition of high temperature and pressure. The platy minerals, like mica, form at right angles to the pressure so that the resulting rock may have a “bedded” appearance.

Looking northwest over Groton Pond toward Owlshead Mountain

Looking north over Groton Pond toward Little Deer Mountain

Transcriber’s Notes