BGS mineralogy and petrology collection record

Sample number	E18071; COLLNOM202;
Sample Donor	Matley, C.A
Rock name	'Original entry: Recrystalized ?, Fine Silica Sediment'
Stratigraphy	Not entered
Comments	just above Fucoid & Chert Horizon; Hard Bed in Purple Shale
Locality details	River Mawddash. N of Garage at Plas Tyddyn Gwladyd
50k map sheet	Harlech (135) View images in GeoScenic related to 'Harlech' View the geology near 'Harlech'
Map reference
Year collected	Not entered
Bore name	Not applicable
Confidentiality	No restrictions

Petrological thin sections

Field of view: c. 31 mm.