BGS mineralogy and petrology collection record

Sample number	MR1936
Sample Donor	Not entered
Rock name	Microgranite. 'Original entry: Elvan Dyke, Quartz-Porphyry'
Stratigraphy	Not entered
Comments	Elvan dyke, quartz-porphyry, 79
Locality details	Qy. in Nansavallon Wood, SW of Truro,
50k map sheet	Falmouth (352) View images in GeoScenic related to 'Falmouth' View a geological map near 'Falmouth'
Map reference	SW 812 440
Year collected	Not entered
Bore name	Not applicable
Confidentiality	No restrictions