BGS mineralogy and petrology collection record

Sample number	S25796; COLLNOWE69;
Sample Donor	Flett,J.S.
Rock name	'Original entry: Nepheline-Biotite Monchiquite'
Stratigraphy	Not entered
Comments	(Melanite)
Locality details	Around Croo Stone, south of Rumley Point, South Ronaldsay
50k map sheet	Copinsay (118) View images in GeoScenic related to 'Copinsay' View the geology near 'Copinsay'
Map reference	ND 489 940
Year collected	Not entered
Bore name	Not applicable
Confidentiality	No restrictions

Petrological thin sections

Field of view: c. 31 mm.