BGS mineralogy and petrology collection record

Sample number	S32380; COLLNO239x;
Sample Donor	Eyles,V.A.
Rock name	'Original entry: Autobrecciated Quartz Trachyte'
Stratigraphy	Not entered
Comments	1" - 3" vein breccia or ash cutting unbrecciated felsite; inside caldera
Locality details	E Calder 625 yds SE of Muirshiels House
50k map sheet	Glasgow (30) View images in GeoScenic related to 'Glasgow' View the geology near 'Glasgow'
Map reference	NS 3156 6278
Year collected	Not entered
Bore name	Not applicable
Confidentiality	No restrictions

Petrological thin sections

Field of view: c. 31 mm.