BGS mineralogy and petrology collection record

Sample number E10800; COLLNO201;
Sample Donor Blake,Professor
Rock name 'Original entry: Basic Gneiss'
Stratigraphy Not entered
Comments Mona Complex. The Gneisses. See Mem.Geol.of Anglesey.p.377. Highly epidotised & deformed, but evidently the gneiss.
Locality details Penrhos near Wigan
50k map sheet Holyhead (93)

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Map reference SH 270 813
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


E10800

Cross Polarized, E10800

Plane Polarized, E10800

Plane Polarized, E10800