BGS mineralogy and petrology collection record

Sample number	MR26570
Sample Donor	Dangerfield,J.; Merriman,R.J.;
Rock name	'Original entry: Riebeckite Microgranite'
Stratigraphy	Not entered
Comments	Not entered
Locality details	Crags on Mynydd Mawr head of Cwm Du, 310yds at 230deg from summit cairn (TrigPt 2290ft)
50k map sheet	Snowdon (119) View images in GeoScenic related to 'Snowdon' View the geology near 'Snowdon'
Map reference	SH 538 549
Year collected	Not entered
Bore name	Not applicable
Confidentiality	No restrictions