BGS mineralogy and petrology collection record

Sample number	E63481; COLLNOKB481;
Sample Donor	Not entered
Rock name	Rhyodacite. 'Original entry: Feldspar Porphyry'
Stratigraphy	Not entered
Comments	Intrusion into Graianog Sandstones, see also KB480(GROUP= )(FORM= )(MEMB= .)(IE=I)(TEXTURE=
Locality details	Y Garn
50k map sheet	Snowdon (119) View images in GeoScenic related to 'Snowdon' View the geology near 'Snowdon'
Map reference	SH 5535 5270
Year collected	Not entered
Bore name	Not applicable
Confidentiality	No restrictions

Petrological thin sections

Field of view: c. 31 mm.