North Herefordshire

Crinoids in Wenlock Limestone ("Ledbury Marble") cobble, Ledbury

Wenlock Limestone

April 1, 201312:00 pmMay 26, 2016 9:30 am

Pale grey nodular or thinly bedded limestones. In character it varies markedly across the region. Examples from the Malvern Axis hills (Abberley, Suckley etc.), Ledbury and Woolhope Dome can be spectacularly fossiliferous, corresponding to reef bodies. During the Silurian water depth deepened towards open ocean to the west and around Ludlow the Wenlock limestone is […]

Aymestry Limestone, Gatley Park Folly, Leinthall Earls

Aymestry Limestone

January 1, 201312:00 pmMay 26, 2016 9:08 am

Blue-grey, hard, nodular argillaceous limestone. The presence of the strongly ribbed brachiopod Kirkidium knightii is diagnostic for this formation. Widely used in the Mortimer Forest, Woolhope Dome, Suckley Hills and Ledbury areas. The character of the formation, like most of the Silurian strata, can vary markedly between a massive limestone suitable for dimension stone to […]

Close-up of Ludlow Shales in Bank House, Leintwardine (copyright Scenesetters)

Ludlow Shales

January 1, 201312:00 pmMay 26, 2016 9:08 am

Olive-blue-grey calcareous siltstones, silty mudstones and mudstones. From a building-stone perspective a classification for the Silurian strata based on rock type is most appropriate, not least because the best building stone yielded by this ‘series’ – the Aymestry Limestone – is diachronous and, in the north-west part of Herefordshire, tends to be variable in its […]

Old Red Sandstone

The Old Red Sandstone is a large group of rocks of late Silurian and Devonian age. They were formed in a semi-arid desert environment which has given them their conspicuous red colouring through the intense weathering of iron-bearing minerals. Nevertheless, they are highly variable in outcrop with red, green, purple or brown colourings, coexisting in […]

Brown Downton Castle Sandstone with red Raglan Mudstone quoins, Mordiford Church

Downton Castle Sandstone

January 1, 201312:00 pmMay 26, 2016 9:00 am

Thinly bedded yellow-brown or buff micaceous fine-grained sandstone with interbedded brown-grey siltstone and mudstone. The narrow bedding make the sandstone bands an excellent tilestone and, where the beds are thickest, freestone. In the Mortimer Forest and other areas west of Ludlow, the Downton Castle Sandstone was an important dimension stone for lintels or more important […]

Berrington Hall - brown sandstone from the Raglan Mudstone, most likely quarried on Shuttocks Hill

Raglan Mudstone

Most of the Raglan Mudstone Formation, which underlies the central plain of Herefordshire, consists of red, purple and green mudstones but beds of sandstone occur too and have been widely used for building stone. Sandstones tend to be micaceous and flaggy with multiple colours in a single bed. More unusually, on Bringsty Common a coarse […]