BGS mineralogy and petrology collection record

Sample number	E31371; COLLNOKB222;
Sample Donor	Beer,K.E.
Rock name	'Original entry: Siltstone (Sub Greywacke Type)'
Stratigraphy	Not entered
Comments	Bedded micaceous sandstone in in thick mudstone succession.
Locality details	W. bank of stream, 60 Yds. NE. of Tawmill.
50k map sheet	Okehampton (324) View images in GeoScenic related to 'Okehampton' View the geology near 'Okehampton'
Map reference	SX 658 995
Year collected	Not entered
Bore name	Not applicable
Confidentiality	No restrictions

Petrological thin sections

Field of view: c. 31 mm.