BGS mineralogy and petrology collection record

Sample number	E57581; COLLNOFJ211;
Sample Donor	Millward, D.
Rock name	Not entered
Stratigraphy	Not entered
Comments	Porphyritic dacite
Locality details	1450 m NW of Blackhall (River Duddan Valley)
50k map sheet	Cumbria or Ambleside (38) View images in GeoScenic related to 'Cumbria or Ambleside' View the geology near 'Cumbria or Ambleside'
Map reference	NY 2323 0248
Year collected	Not entered
Bore name	Not applicable
Confidentiality	No restrictions