BGS mineralogy and petrology collection record

Sample number	E10707; COLLNO108;
Sample Donor	Blake,Professor
Rock name	'Original entry: Cryptocrystalline Hornfels'
Stratigraphy	Not entered
Comments	see mem. Geology of Anglesy pp 335-6 [probably Gwna Beds] Muscavite & Biotite Mona Complex Plutonic Intrusion
Locality details	Clegyr, Bodafon
50k map sheet	Holyhead (93) View images in GeoScenic related to 'Holyhead' View the geology near 'Holyhead'
Map reference	SH 470 857
Year collected	Not entered
Bore name	Not applicable
Confidentiality	No restrictions

Petrological thin sections

Field of view: c. 31 mm.