BGS mineralogy and petrology collection record

Sample number E10825; COLLNO226;
Sample Donor Blake,Professor
Rock name 'Original entry: Felsite Spheriulitic'
Stratigraphy Not entered
Comments see mem. Geology of Anglesey pp 527-9 Spherulies in cryptocrystalline matrix Palaeozoic Intrusions
Locality details E. of Mynydd Mechell
50k map sheet Holyhead (93)

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Map reference SH 357 899
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


E10825

Cross Polarized, E10825

Plane Polarized, E10825

Plane Polarized, E10825