BGS mineralogy and petrology collection record

Sample number E24606; COLLNOGG130;
Sample Donor Green,G.W.
Rock name 'Original entry: Fine Grained Quartz-Porphyry'
Stratigraphy Not entered
Comments Much altered acidic Hypabyssal pebble in last bulk of pebbles
Locality details Forestry Comm. Water tank excavation on Black Down 880yds N. 30 E. of Longbottom Farm
50k map sheet Wells (280)

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Map reference ST 465 581
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


E24606

Cross Polarized, E24606

Plane Polarized, E24606

Plane Polarized, E24606