BGS mineralogy and petrology collection record

Sample number	S25815; MR15314; COLLNOWE79;
Sample Donor	Flett,J.S.
Rock name	'Original entry: Nepheline Monchiquite'
Stratigraphy	Not entered
Comments	Dyke in Rousay Beds (centre)
Locality details	Cliff top Duni Geo N of Ham Geo, & 640tds S40E of Isbister South Ronaldsay
50k map sheet	Hoy (117) View images in GeoScenic related to 'Hoy' View the geology near 'Hoy'
Map reference	ND 470 842
Year collected	Not entered
Bore name	Not applicable
Confidentiality	No restrictions

Petrological thin sections

Field of view: c. 31 mm.