BGS mineralogy and petrology collection record

Sample number	E31808; COLLNO191;
Sample Donor	Dixon,E.E.L.
Rock name	Not entered
Stratigraphy	Not entered
Comments	Chert composed of sponge spicules, silica and calcite in concentric bands. Lower part of uper Seminular subzone S1.
Locality details	Cliff, S. of Overton, Port Eynon.
50k map sheet	Worms Head (246) View images in GeoScenic related to 'Worms Head' View the geology near 'Worms Head'
Map reference	SS 460 848
Year collected	Not entered
Bore name	Not applicable
Confidentiality	No restrictions

Petrological thin sections

Field of view: c. 31 mm.