BGS mineralogy and petrology collection record

Sample number	E10855; COLLNO256;
Sample Donor	Blake,Professor
Rock name	'Original entry: Altered Spilite'
Stratigraphy	Not entered
Comments	see mem. Geology of Anglesey p 279 Highly Epidotized & Amphilolyed c.f. E1544 Mona Complex New Harbour Beds
Locality details	Porth -y-Defaid North
50k map sheet	Holyhead (93) View images in GeoScenic related to 'Holyhead' View the geology near 'Holyhead'
Map reference	SH 288 858
Year collected	Not entered
Bore name	Not applicable
Confidentiality	No restrictions

Petrological thin sections

Field of view: c. 31 mm.