BGS mineralogy and petrology collection record

Sample number S46969; COLLNOYZ68;
Sample Donor Berridge,N.G.
Rock name Not entered
Stratigraphy Not entered
Comments Bedding and slaty cleavage probably close together
Locality details Nant Low Pressure Tunnel (HE 26), 4816 ft from intake portal
50k map sheet Oban (45)

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Map reference NN 0045 2203
Year collected Not entered 
Bore name Not applicable
Confidentiality No restrictions

Petrological thin sections

Links to high resolution images

Transition from XPL to PPL light


S46969

Cross Polarized, S46969

Plane Polarized, S46969

Plane Polarized, S46969