BGS mineralogy and petrology collection record

Sample number	E12353; COLLNOMJ13333; NEG1436M; NEG1725M; ELABNO744;
Sample Donor	Hallimond,Doctor
Rock name	'Original entry: Hematite Dolomite Oolite'
Stratigraphy	Not entered
Comments	Pyritous band at base of ore
Locality details	Penrhyn Iron Mine, Llandegai, Nr. Bangor
50k map sheet	Bangor (106) View images in GeoScenic related to 'Bangor' View the geology near 'Bangor'
Map reference
Year collected	Not entered
Bore name	Not applicable
Confidentiality	No restrictions

Petrological thin sections

Field of view: c. 31 mm.