BGS mineralogy and petrology collection record

Sample number	MR5921
Sample Donor	Not entered
Rock name	Lamprophyres. 'Original entry: Porphyrite'
Stratigraphy	Lower Permian. Exeter Group.
Comments	Porphyrite,Exeter Volcanic Rocks,Lower Permian,
Locality details	Spencecombe qy., near Knowle, 2.25 miles N of Yeoford,
50k map sheet	Exeter (325) View images in GeoScenic related to 'Exeter' View the geology near 'Exeter'
Map reference	SS 794 017
Year collected	Not entered
Bore name	Not applicable
Confidentiality	No restrictions