BGS mineralogy and petrology collection record

Sample number E8438; COLLNO43;
Sample Donor Calloway, G.A.
Rock name 'Original entry: Halleflinta'
Stratigraphy Not entered
Comments Mona Complex. See Mem.Geol.of Anglesey.cf.p.349
Locality details SE.of Cerrigddwyffordd Llangefni
50k map sheet Caernarfon (105)

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Map reference SH 46 75
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


E8438

Cross Polarized, E8438

Plane Polarized, E8438

Plane Polarized, E8438