BGS mineralogy and petrology collection record

Sample number	E57759; MR27878; COLLNOD38B; COLLNOJH187;
Sample Donor	Chaperlin,K.; Hawkes,J.R.;
Rock name	'Original entry: Granite'
Stratigraphy	Not entered
Comments	Megacrystic granite, contaminated. With fine granite vein. (Contaminated granite with biotite bearing aplitic stringer)
Locality details	Hartland Tor, c. 4 miles NE. of Two Bridges.
50k map sheet	Dartmoor Forest (338) View images in GeoScenic related to 'Dartmoor Forest' View the geology near 'Dartmoor Forest'
Map reference	SX 643 800
Year collected	Not entered
Bore name	Not applicable
Confidentiality	No restrictions

Petrological thin sections

Field of view: c. 31 mm.