BGS mineralogy and petrology collection record

Sample number	MR2169
Sample Donor	Not entered
Rock name	Chert. 'Original entry: Chert'
Stratigraphy	Tournaisian. Culm Supergroup.
Comments	Chert,Lower Culm,Carboniferous, 689
Locality details	Barracadoes Quarry,St. Stephens, Launceston,
50k map sheet	Tavistock (337) View images in GeoScenic related to 'Tavistock' View a geological map near 'Tavistock'
Map reference	SX 322 862
Year collected	Not entered
Bore name	Not applicable
Confidentiality	No restrictions