BGS mineralogy and petrology collection record

Sample number	E30503; COLLNOC232;
Sample Donor	Collins,G.H.
Rock name	'Original entry: Chert'
Stratigraphy	Not entered
Comments	Shaley chert.
Locality details	Spring Hill.
50k map sheet	Tavistock (337) View images in GeoScenic related to 'Tavistock' View the geology near 'Tavistock'
Map reference	SX 438 840
Year collected	Not entered
Bore name	Not applicable
Confidentiality	No restrictions

Petrological thin sections

Field of view: c. 31 mm.