BGS mineralogy and petrology collection record

Sample number E10745; COLLNO146;
Sample Donor Blake,Professor
Rock name 'Original entry: Mica Schist'
Stratigraphy Not entered
Comments Mona Complex. Pen-Zone. See Mem.Geol.of Anglesey.p.372. Albitic with vermiculite aggregates
Locality details Bodowyr valley of Braint
50k map sheet Caernarfon (105)

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Map reference SH 470 680
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


E10745

Cross Polarized, E10745

Plane Polarized, E10745

Plane Polarized, E10745