BGS mineralogy and petrology collection record

Sample number	E7202; COLLNO186; NEG778M;
Sample Donor	Dewey,H.
Rock name	Basalt. 'Original entry: Minverite'
Stratigraphy	Not entered
Comments	Epidote, actinolite, with large crystals of albite. .
Locality details	Rock ledge by Polyphant Old Quarry.
50k map sheet	Tavistock (337) View images in GeoScenic related to 'Tavistock' View the geology near 'Tavistock'
Map reference	SX 257 829
Year collected	Not entered
Bore name	Not applicable
Confidentiality	No restrictions

Petrological thin sections

Field of view: c. 31 mm.