BGS mineralogy and petrology collection record

Sample number	E34549; COLLNOKB605;
Sample Donor	Beer,K.E.
Rock name	'Original entry: Quartz Muscovite Sericite Chiastolite Rock With Greisen Vein.'
Stratigraphy	Not entered
Comments	Greisen veinlet.
Locality details	BH. No. 4. Collar at 230 Yds., 120 deg. from Trig. point. (Sourton Tors).
50k map sheet	Okehampton (324) View images in GeoScenic related to 'Okehampton' View the geology near 'Okehampton'
Map reference	SX 5450 8970
Year collected	Not entered
Bore name	Sourton Tors Bh. No. 4.
Confidentiality	No restrictions

Petrological thin sections

Field of view: c. 31 mm.