Guiting Cotswold Stone

Guiting Cotswold block has a distinctive, slightly darker golden or honey colour and a medium grain that’s typical of Cotswold towns and villages. The block sizes are unusually large for a Cotswold quarry with a block height up to two metres and individual sizes up to 14 tonnes, which means it is useful for a wide variety of walling, building and masonry requirements.

Petrographic Description and Mineral Examination

Guiting Cotswold Limestone is orange-brown in colour and consists primarily of ooliths with a number of typically elongated bioclasts. The constituents are held within a coarse carbonate cement and there appeared to be a broad alignment of some of the components. During testing there was no evidence of weathering or deterioration. In thin section, the stone consists of a general assemblage of ooliths, bioclasts and intraclasts with quartz grains forming a notable constituent. Some ooliths show a typical concentric structure but many had a seed consisting of quartz grain, bioclast or intraclast/lithoclast fragnents. Some are also formed around a quartz or feldspar crystal.

Bioclasts consist mainly of echinoid plates, bivalves and gastropods and usually show a rim of micrite around the periphery. Iron minerals are present in small quantities
throughout the section which often give rise to the development of oxides/hydroxides producing the distinctive orange colour to the stone. Based on the mineralogy identified the stone has been given the classification of Oolitic limestone.

BRE Test Data

*All comprehensive British and European Standards test data and declaration of performance for CE marking
application are available on request.