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 a geological map near 'Tavistock'
Map reference	SX 260 826
Year collected	Not entered
Bore name	Not applicable
Confidentiality	No restrictions