BGS mineralogy and petrology collection record

Sample number E10912; COLLNO313;
Sample Donor Blake,Professor
Rock name 'Original entry: Gneiss Decomposed'
Stratigraphy Not entered
Comments see mem. Geology of Anglesey pp 328-9 Chiefly Calcite Chlorite & Micacised Feldspars Mona Complex The Gneisses
Locality details Abertywldog
50k map sheet Holyhead (93)

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Map reference SH 49 90
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


E10912

Cross Polarized, E10912

Plane Polarized, E10912

Plane Polarized, E10912