BGS Rock Classification Scheme

Schist, chlorite-epidote

Code CESCH
Description Schist, chlorite-epidote
Qualifiers chlorite   epidote   
Definition Medium-grained (av. 0.25-2mm), crystalloblastic metamorphic rock (protolith undefined) splits into <5mm slabs/flakes defined by a well developed planar orientation of platy/prismatic minerals; chlorite<epidote both 5-20%
Linked data http://data.bgs.ac.uk/id/EarthMaterialClass/RockName/CESCH

CAVEAT

"Thumbnail" definitions attached to some of the table entries are an interim attempt to provide simple short descriptions of the "unqualified" rock types presented within the BGS Rock Classification Scheme. Every effort has been made to ensure accuracy and consistency but minor contradictions or omissions might be present. The BGS welcomes any feedback pointing out such minor imperfections and/or providing constructive comment and suggestions for improvement of the definitions. In the first instance such feedback should be directed to Dr Tim McCormick.