BGS mineralogy and petrology collection record

Sample number E21297
Sample Donor Road Research Laboratory
Rock name 'Original entry: Pseudo-Oolitic Shell Fragment Limestone'
Stratigraphy Not entered
Comments 40-45ft. Below surface
Locality details Perryfield Quarry, 400yds.NW.of Pennsylvania Castle, St.Georges, Portland
50k map sheet Weymouth (342)

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Map reference SY 695 712
Year collected Not entered 
Bore name Not applicable
Confidentiality No restrictions

Petrological thin sections

Links to high resolution images

Transition from XPL to PPL light


E21297

Cross Polarized, E21297

Plane Polarized, E21297

Plane Polarized, E21297