BGS mineralogy and petrology collection record

Sample number	E7840; COLLNO226; PHOTOM761;
Sample Donor	Dewey,H.
Rock name	Picrite. 'Original entry: Hornblende Picrite'
Stratigraphy	Not entered
Comments	Olivine, tremolite, hornblende, augite, biotite, magnetite etc..
Locality details	Crag near Combe.
50k map sheet	Tavistock (337) View images in GeoScenic related to 'Tavistock' View a geological map near 'Tavistock'
Map reference
Year collected	Not entered
Bore name	Not applicable
Confidentiality	No restrictions

Petrological thin sections

Field of view: c. 31 mm.