BGS mineralogy and petrology collection record

Sample number	MR31982
Sample Donor	Mykura,W.
Rock name	'Original entry: Stromatalites (Stacked Hemisphaeroids)'
Stratigraphy	Not entered
Comments	Horse Tooth Stone' Lower Stromness Flags, Middle Old Red Sandstone
Locality details	West Coast of Orkney Mainland at Yesnaby
50k map sheet	Kirkwall (119) View images in GeoScenic related to 'Kirkwall' View a geological map near 'Kirkwall'
Map reference	HY 220 161
Year collected	1973
Bore name	Not applicable
Confidentiality	No restrictions