BGS mineralogy and petrology collection record

Sample number	E5791; COLLNO684; NEG2097M; ELABNO268; NEG795M;
Sample Donor	Hill, J.B.
Rock name	'Original entry: Spilite'
Stratigraphy	Not entered
Comments	Porphyritic feldspars. Ordovician lava.
Locality details	Tregidden Western Quarry, 2.5 miles WNW. of St. Keverne.
50k map sheet	Lizard (359) View images in GeoScenic related to 'Lizard' View the geology near 'Lizard'
Map reference	SW 754 231
Year collected	Not entered
Bore name	Not applicable
Confidentiality	No restrictions

Petrological thin sections

Field of view: c. 31 mm.