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Sedimentary Rock

A mudstone concretion within a medium grained well sorted sandstone, measuring (88mm x 70mm x 37mm). This specimen is a medium grained, brown sandstone with a darker mudstone concretion outlining two oval depressions within the sandstone measuring (67mm x 68mm x 6mm). Within the nodule with a cross shaped structure running through the centre. The edge of the nodule is well defined. There is some i…