BGS mineralogy and petrology collection record

Sample number	E32019; COLLNOKB299;
Sample Donor	Beer,K.E.
Rock name	'Original entry: Altered Lamprophyre (Olivine Biotite)'
Stratigraphy	Not entered
Comments	Dyke, 6Ft. wide, cutting culm sediments. Specimen from centre of vertical dyke.
Locality details	River Lew, 610 Yds. E, 16 deg. S. of Cleave Farm.
50k map sheet	Okehampton (324) View images in GeoScenic related to 'Okehampton' View the geology near 'Okehampton'
Map reference	SS 536 019
Year collected	Not entered
Bore name	Not applicable
Confidentiality	No restrictions

Petrological thin sections

Field of view: c. 31 mm.