BGS mineralogy and petrology collection record

Sample number E20050; E20050/A; COLLNOJHT129;
Sample Donor Taylor,J.H.
Rock name Hydroxides And Oxides Of Iron. 'Original entry: Calcareous Ironstone'
Stratigraphy Middle Jurassic. Northampton Ironstone.
Comments calcareous gritty limonite 4 ft below top of ironstone
Locality details Desborough Pit 150 y SW of Desborough Grange
50k map sheet Market Harborough (170)

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Map reference SP 801 841
Year collected
Bore name Not applicable
Confidentiality No restrictions

Petrological thin sections

Links to high resolution images

Transition from XPL to PPL light


E20050

Cross Polarized, E20050

Plane Polarized, E20050

Plane Polarized, E20050


E20050/A

Cross Polarized, E20050/A

Plane Polarized, E20050/A

Plane Polarized, E20050/A