BGS mineralogy and petrology collection record

Sample number E10841; COLLNO242;
Sample Donor Blake,Professor
Rock name 'Original entry: Muscavite & Biotite Gneiss'
Stratigraphy Not entered
Comments see mem. Geology of Anglesey p 327-8 Haematization Mona Complex The Gneisses
Locality details Llanwenllwygo S. end of shore
50k map sheet Holyhead (93)

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Map reference SH 486 893
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


E10841

Cross Polarized, E10841

Plane Polarized, E10841

Plane Polarized, E10841