BGS mineralogy and petrology collection record

Sample number	E7835; COLLNO221;
Sample Donor	Dewey,H.
Rock name	Sandstone (Undifferentiated). 'Original entry: Grit'
Stratigraphy	Not entered
Comments	No feldspar, nearly all quartz grains.
Locality details	Downs Quarry, half a mile N. of Trekenna Laneart.
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.