BGS mineralogy and petrology collection record

Sample number	MR1822
Sample Donor	Not entered
Rock name	Basalt. 'Original entry: Hornblende-Picrite ("Polyphant Stone")'
Stratigraphy	Not entered
Comments	Hornblende-picrite ("Polyphant Stone"),
Locality details	Polyphant Quarry,Polyphant, Lewannick,
50k map sheet	Tavistock (337) View images in GeoScenic related to 'Tavistock' View the geology near 'Tavistock'
Map reference	SX 260 826
Year collected	Not entered
Bore name	Not applicable
Confidentiality	No restrictions