BGS mineralogy and petrology collection record

Sample number	S46959; COLLNOYZ58;
Sample Donor	Berridge,N.G.
Rock name	Not entered
Stratigraphy	Not entered
Comments	NW-dipping branching dyke; chilled margin
Locality details	Nant Low Pressure Tunnel (HE 26), 5468 ft from intake portal
50k map sheet	Oban (45) View images in GeoScenic related to 'Oban' View a geological map near 'Oban'
Map reference	NN 0055 2185
Year collected	Not entered
Bore name	Not applicable
Confidentiality	No restrictions

Petrological thin sections

Field of view: c. 31 mm.