BGS mineralogy and petrology collection record

Sample number	E11472; COLLNOJAH3509E;
Sample Donor	Howe,J.A.
Rock name	'Original entry: See Defined Tridymite'
Stratigraphy	Not entered
Comments	VARIOUS STAGES OF ALTERATION IN A USED SILICA BRICK
Locality details	OUGHTIBRIDGE SHEFFIELD
50k map sheet	Sheffield (100) View images in GeoScenic related to 'Sheffield' View the geology near 'Sheffield'
Map reference	SK 307 932
Year collected	Not entered
Bore name	Not applicable
Confidentiality	No restrictions

Petrological thin sections

Field of view: c. 31 mm.