Cwm Leyshon, Draethen: Geology
Description
Picture: 1
Carboniferous Minerals
Dolomite limestone red with haematite. Fine red crystals of CaC03:MgCO3. Right has fibrous Barytes (BaS04) and galena lead ore. Cwm Leyshon, near Machen. 21/05/69
Date: 21/05/1969
Picture: 2
Carboniferous Minerals
Left fibrous barytes, Cwm Leyshon, Right cocks comb barytes. Ocherwyth on Little Garth, barytes is massive and platey, 21/05/69
Date: 21/05/1969
Picture: 3
Draethen Plants
Galena, a silver lead ore, left, and pure from upper vein. Ocherwyth Quarry near Risca. Right with dolomite, red with haematite, and fibrous barytes. Cwm Leyshon Machen, 21st May 1969
Date: 21/05/1969
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