BGS mineralogy and petrology collection record

Sample number	E19481; COLLNOEV 3; LABNONo. 1215;
Sample Donor	Evans,W.D.
Rock name	'Original entry: Gritty Limonitic Ironstone'
Stratigraphy	Not entered
Comments	See N.S.I.M. strat. P.84. Ironstone. NB.The ferruginous aggregate is often birefringent & therefore probably of ???? , goethite
Locality details	Exposure on escarpment 1400y. N.of Harmston Hall, Harmston
50k map sheet	Lincoln (114) View images in GeoScenic related to 'Lincoln' View the geology near 'Lincoln'
Map reference	SK 970 634
Year collected	Not entered
Bore name	Not applicable
Confidentiality	No restrictions

Petrological thin sections

Field of view: c. 31 mm.