BGS mineralogy and petrology collection record

Sample number	E20058; COLLNOJHT137;
Sample Donor	Taylor,J.H.
Rock name	Hydroxides And Oxides Of Iron. 'Original entry: Ironstone'
Stratigraphy	Middle Jurassic. Northampton Ironstone.
Comments	chamosite ooliths in siderite with interstitial chamosite 9 ft below top of ironstone
Locality details	Twywell Pit 1250 y SW of Twywell Church
50k map sheet	Kettering (171) View images in GeoScenic related to 'Kettering' View a geological map near 'Kettering'
Map reference	SP 945 797
Year collected	0
Bore name	Not applicable
Confidentiality	No restrictions

Petrological thin sections

Field of view: c. 31 mm.