BGS mineralogy and petrology collection record

Sample number E20331; COLLNOJHT144;
Sample Donor Taylor,J.H.
Rock name Hydroxides And Oxides Of Iron. 'Original entry: Calcareous Ironstone'
Stratigraphy Middle Jurassic. Northampton Ironstone.
Comments calcareous sideritic grit 1 ft 6 ins from top
Locality details old pit 350 y NW of Desborough Station
50k map sheet Market Harborough (170)

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Map reference SP 806 836
Year collected
Bore name Not applicable
Confidentiality No restrictions

Petrological thin sections

Links to high resolution images

Transition from XPL to PPL light


E20331

Cross Polarized, E20331

Plane Polarized, E20331

Plane Polarized, E20331