BGS mineralogy and petrology collection record

Sample number	S38117; COLLNOXJ58;
Sample Donor	Johnstone,G.S.
Rock name	'Original entry: Tuff Or Fragmented Base Of Lava'
Stratigraphy	Not entered
Comments	Green trachytic tuff (possibly xenolithic trachyte?) of d ' age. Fine-grained
Locality details	Burn in the Tongue, 1230 yds E 25 deg N of Murchan Hill
50k map sheet	Glasgow (30) View images in GeoScenic related to 'Glasgow' View the geology near 'Glasgow'
Map reference	NS 2801 6128
Year collected	Not entered
Bore name	Not applicable
Confidentiality	No restrictions

Petrological thin sections

Field of view: c. 31 mm.