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 the geology near 'Tavistock'
Map reference	SX 322 862
Year collected	Not entered
Bore name	Not applicable
Confidentiality	No restrictions