BGS Rock Classification Scheme

Sandstone, glauconitic

Code	GLSST
Description	Sandstone, glauconitic
Qualifiers	glauconitic
Definition	Siliciclastic sedimentary rock, >50vol% clasts from pre-existing siliceous rocks. Grains >50% or predominantly sand-grade, 0.032 to 2mm. 5 to 20% glauconite microcrystalline in grains 0.032-2mm, green. Marine in origin. Composition not defined.
Linked data	http://data.bgs.ac.uk/id/EarthMaterialClass/RockName/GLSST

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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.