BGS mineralogy and petrology collection record

Sample number MR7962
Sample Donor Not entered
Rock name Limestone. 'Original entry: Spirorbis Limestone'
Stratigraphy Duckmantian. Middle Coal Measures Formation And Upper Coal Measures Formation (Undifferentiated) [Obsolete: Use Pmucm, Swmuc, Smucm].
Comments Spirorbis limestone,Upper Coal Measures,Upper Carboniferous,brick raw material,Collected byTG Jones J437
Locality details Hafod Brickworks, New NW Pit,E of Johnstown railway station, Ruabon,
50k map sheet Wrexham (121)

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Map reference
Year collected 1931 
Bore name Not applicable
Confidentiality No restrictions