BGS mineralogy and petrology collection record

Sample number	E7205; E7205/A; COLLNO189; ELABNO353;
Sample Donor	Dewey,H.
Rock name	'Original entry: Serpentinised Picrite (Hornblende, Picrite)'
Stratigraphy	Not entered
Comments	Very little fresh material left. Biotite seen in places. Intrusion devonian or carboniferous.
Locality details	Polyphant Quarry.
50k map sheet	Tavistock (337) View images in GeoScenic related to 'Tavistock' View the geology near 'Tavistock'
Map reference	SX 263 826
Year collected	Not entered
Bore name	Not applicable
Confidentiality	No restrictions