BGS mineralogy and petrology collection record

Sample number	E63030; COLLNOKB30;
Sample Donor	Not entered
Rock name	Metadolostone. 'Original entry: Mudstone'
Stratigraphy	Not entered
Comments	.5m from lower contact of dolerite sill(GROUP= Nantmor Group)(FORM= Cwm Eigiau Fm.)(MEMB= .)(IE=)(TEXTURE=Contact Altered
Locality details	S bank, Nant Llyn y Foel
50k map sheet	Snowdon (119) View images in GeoScenic related to 'Snowdon' View the geology near 'Snowdon'
Map reference	SH 7160 5474
Year collected	Not entered
Bore name	Not applicable
Confidentiality	No restrictions

Petrological thin sections

Field of view: c. 31 mm.