BGS mineralogy and petrology collection record

Sample number E8479; COLLNO373;
Sample Donor Calloway, G.A.
Rock name 'Original entry: Hornblende-Gneiss. Diorite.'
Stratigraphy Not entered
Comments See Mem.Geol.of Anglesey c.f.p.322. Mona Complex. The Gneisses.
Locality details Craig-yr-Allor
50k map sheet Holyhead (93)

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Map reference SH 372 774
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


E8479

Cross Polarized, E8479

Plane Polarized, E8479

Plane Polarized, E8479