BGS mineralogy and petrology collection record

Sample number	E19486; COLLNOKD186;
Sample Donor	Dunham,K.C.
Rock name	'Original entry: Secoundary Silica Replacing A Breccia'
Stratigraphy	Not entered
Comments	GREAT SULPHUR VEIN: ? REPLACING LIMESTONE
Locality details	SIR JOHNS LEVEL: 1382' SE. OF LEVEL MOUTH
50k map sheet	Alston (25) View images in GeoScenic related to 'Alston' View the geology near 'Alston'
Map reference	NY 762 378
Year collected	Not entered
Bore name	Not applicable
Confidentiality	No restrictions

Petrological thin sections

Field of view: c. 31 mm.