BGS mineralogy and petrology collection record

Sample number	E25225; COLLNOGM 428;
Sample Donor	Mitchell,G.H.
Rock name	'Original entry: Porph.Dacite'
Stratigraphy	Not entered
Comments	Porphyry
Locality details	290yds.S.by W.of Gaer Stone
50k map sheet	Church Stretton (166) View images in GeoScenic related to 'Church Stretton' View the geology near 'Church Stretton'
Map reference	SO 4715 9315
Year collected	Not entered
Bore name	Not applicable
Confidentiality	No restrictions

Petrological thin sections

Field of view: c. 31 mm.