BGS mineralogy and petrology collection record

Sample number S4904
Sample Donor Geikie,A.; Peach, B.N.;
Rock name 'Original entry: Felsite F'
Stratigraphy Not entered
Comments Silicified - fine fluxion structure. Felsite lava H
Locality details N face of Castlelaw, 5.5 miles S of Edinburgh
50k map sheet Edinburgh (32)

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Map reference NT 225 649
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


S4904

Cross Polarized, S4904

Plane Polarized, S4904

Plane Polarized, S4904