BGS mineralogy and petrology collection record

Sample number E30763; COLLNOKC1138;
Sample Donor Chaperlin,K.; Sanderson,R.W.;
Rock name 'Original entry: Volcanic Rock'
Stratigraphy Not entered
Comments Clogwyn volcanic group.
Locality details Crags, S. of Clogwyn Melyn, 100 Yds. at 78 deg from Clogwyn and 1625 Yds. at 76 deg from Pen Y Groes Station.
50k map sheet Nefyn (118)

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Map reference SH 482 534
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


E30763

Cross Polarized, E30763

Plane Polarized, E30763

Plane Polarized, E30763