BGS Rock Classification Scheme

Sandstone, hornfelsed

Code	HFSDST
Description	Sandstone, hornfelsed
Qualifiers	hornfelsed
Definition	Siliciclastic metasedimentary rock, sandstone (sand-grade clasts dominantly 0.032-2mm with <75% <0.032mm & <25% >2mm) protolith (compositon undefined), recrystallised by contact metamorphism to hard rock lacking parting planes
Linked data	http://data.bgs.ac.uk/id/EarthMaterialClass/RockName/HFSDST

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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.