£1.00 – £2.74
Carboniferous Mudstone found in Lancashire supplied in a card tray with a label.
Mudstone is a very fine grained sedimentary rock composed of clay minerals & silt sized quartz grains that lacks a well developed bedding structure or fissility. This lithology is typically associated with low energy environments such as tidal flats, lakes or deep marine. This example is from the Carboniferous of Lancashire. Each specimen is supplied in a labelled card tray.