BGS mineralogy and petrology collection record

Sample number	MR19594; COLLNOSJ30;
Sample Donor	Woodland,A.W.
Rock name	'Original entry: Mudstone'
Stratigraphy	Not entered
Comments	Containing an interbedded contorted band of sphaerodialogite Lower Cambrian
Locality details	St. John's Ch., Barmouth
50k map sheet	Barmouth (149) View images in GeoScenic related to 'Barmouth' View the geology near 'Barmouth'
Map reference	SH 613 159
Year collected	Not entered
Bore name	Not applicable
Confidentiality	No restrictions