BGS Rock Classification Scheme

Meta-anhydrite-stone

Code	MANHY
Description	Meta-anhydrite-stone
Qualifiers	No qualifiers currently exist.
Definition	Meta-sedimentary rock with field identifiable anhydrite-stone protolith. Sedimentary rock, crystals >50% non-carbonate salt, sulphate, dominanlty anhydrite (CaSO4) crystals orthorhombic, usually white.Mohs' 2. Crystal size not defined. An evaporite.
Linked data	http://data.bgs.ac.uk/id/EarthMaterialClass/RockName/MANHY

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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.