BGS mineralogy and petrology collection record

Sample number	E19251; COLLNOKD165;
Sample Donor	Dunham,K.C.
Rock name	'Original entry: Pyritous Silicified Rock (Shelly Limestone)'
Stratigraphy	Not entered
Comments	PYRITIC REPLACEMENT (analysed sample)
Locality details	NFMOC No4 TRENCH,11' 6"W. OF No1 TRENCH
50k map sheet	Alston (25) View images in GeoScenic related to 'Alston' View the geology near 'Alston'
Map reference	NY 75 38
Year collected	Not entered
Bore name	Not applicable
Confidentiality	No restrictions

Petrological thin sections

Field of view: c. 31 mm.