BGS mineralogy and petrology collection record

Sample number	E48503; COLLNOLA505;
Sample Donor	Allen,P.M.
Rock name	'Original entry: Tuffisite'
Stratigraphy	Not entered
Comments	? Tuffisite
Locality details	210 yds S of Penrhos Isaf
50k map sheet	Harlech (135) View images in GeoScenic related to 'Harlech' View the geology near 'Harlech'
Map reference	SH 7378 2368
Year collected	Not entered
Bore name	Not applicable
Confidentiality	No restrictions

Petrological thin sections

Field of view: c. 31 mm.