BGS mineralogy and petrology collection record

Sample number	S77772; COLLNOAX1773;
Sample Donor	Floyd,J.D.
Rock name	Not entered
Stratigraphy	Not entered
Comments	Greywacke, Silurian. K=14.7
Locality details	Knoll in field, 800m WNW of Challoch, N.Stewart
50k map sheet	Kirkcowan (4W) View images in GeoScenic related to 'Kirkcowan' View a geological map near 'Kirkcowan'
Map reference	NX 3774 6768
Year collected	Not entered
Bore name	Not applicable
Confidentiality	No restrictions

Petrological thin sections

Field of view: c. 31 mm.