BGS mineralogy and petrology collection record

Sample number	E11053; COLLNO134;
Sample Donor	Matley, C.A
Rock name	'Original entry: Spotted Spilosite.'
Stratigraphy	Not entered
Comments	Palaeozoic Intrusions. See Mem.Geol.of Anglesey.p.531. Thermal white mica, later than Ass.with E11050,(spotted phyllite altd.)
Locality details	Near Orsedd Goch
50k map sheet	Holyhead (93) View images in GeoScenic related to 'Holyhead' View the geology near 'Holyhead'
Map reference	SH 305 905
Year collected	Not entered
Bore name	Not applicable
Confidentiality	No restrictions

Petrological thin sections

Field of view: c. 31 mm.