BGS mineralogy and petrology collection record

Sample number	E34221; COLLNOMK260;
Sample Donor	Mckeown,M.C.
Rock name	'Original entry: Volcanic Rock'
Stratigraphy	Not entered
Comments	Sheared lava. Possible L. Culm age.
Locality details	Temporary exposure, 250 Yds. N, 20 deg. E. of Launceston Castle.
50k map sheet	Tavistock (337) View images in GeoScenic related to 'Tavistock' View the geology near 'Tavistock'
Map reference	SX 3312 8480
Year collected	Not entered
Bore name	Not applicable
Confidentiality	No restrictions

Petrological thin sections

Field of view: c. 31 mm.