DORSET BUILDING STONE
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Bath Stone (lead authors WGT/PS)

The term Bath Stone refers to Middle Jurassic bioclastic oolitic limestones (bio-oosparite) of the Great Oolite Group, deposited in shallow seas 168 to 166 million years ago (Bathonian).  The outcrop between Bath (Somerset) and Corsham (Wilts) has been extensively quarried above and below ground since the 1700s. These limestones are not present in Dorset, their lateral equivalent being the Fuller’s Earth, Frome Clay and Forest Marble (qv) Formations. 
Picture
Due to its strength, Bath Stone is commonly seen as window dressings and quoins, especially in Victorian churches.  Bath Stone has been used in Dorset since the railways were built in the mid-19th century.  Most Bournemouth churches and the 19th century ones in Poole, plus the cemetery chapels in Blandford (qv) have dressings of Bath Stone with walls of more local materials. Those churches which required extensive renovation in the late 19th century have interior work also – an example being Upwey church.  A distinctive weathering characteristic is that the upper part of exterior arches in Bath Stone tends to turn a dark orange/brown.  However, Bath Stone used in Dorchester (Agriculture House, Trinity Church in the High Street) remains a muddy cream colour and has quite a high shell fragment content.
Picture
Fresh sample from Bath Stone Co. underground quarry (mine) at Limpley Stoke, Wilts. Photo: PS
Text by WGT, JT & PS March 2017
Two levels are used as building stone: the Combe Down Oolite and the higher Bath Oolite & Corsham Limestone.  In both cases the stone is cream-coloured with a sparry calcite cement which is harder than the ooids.  The latter often weather out leaving moulds with the cement standing proud of the surface.  Weathering and the addition of fungal/algal films can result in a honey-coloured or reddish-looking stone.
Picture
Picture
Park Lane (Corsham) Stone, being quarried in the 21st century by Ham and Doulting Stone. Photo: JT

Similar Middle Jurassic limestone is quarried in Lincolnshire
and sometimes used as a Bath Stone substitute.
https://en.wikipedia.org/wiki/Ancaster_stone

Picture

© DORSET BUILDING STONE
and contributors
  • Home
    • About Us
    • Glossary
    • References and Sources
    • Work in Progress
  • Building stones
    • How we study building stones
    • Palaeogene >
      • Heathstone
      • Sarsens
    • Cretaceous >
      • Chalk
      • Flint
      • Upper Greensand
      • Chert
      • Wealden
      • Purbeck >
        • Upper Purbeck (Purbeck Marble)
        • Upper Purbeck (Broken Shell Lst. aka Burr)
        • Middle Purbeck (Upper Building Stones)
        • Lower Purbeck (Cypris Freestones)
    • Jurassic >
      • Lower Purbeck >
        • Cypris Freestones
      • Portland Stone - Dorset
      • Chert
      • Kimmeridge Bay Dolomitic Limestone
      • Corallian
      • Cornbrash
      • Forest Marble
      • Fuller's Earth Rock
      • Inferior Oolite
      • Bridport Sands
      • Junction Bed
      • Blue Lias
    • Dorset Bricks
    • Non-Dorset Stone >
      • Tertiary >
        • Bembridge Limestones - Isle Of Wight
      • Cretaceous >
        • Beer Stone - SE Devon
      • Jurassic >
        • Bath Stone - Somerset & Wilts
        • Blue Lias of Somerset
        • Doulting Stone - Somerset
        • Ham Hill Stone - Somerset
        • Portland Limestone – Wilts (Chilmark)
        • Normandy >
          • Pierre de Caen (Caen Stone)
        • Pas de Calais
      • Triassic: White Lias of SE Devon
      • Carboniferous >
        • Carboniferous Limestones: Polished Black
      • Devonian
    • Building Stone Trails >
      • Devon Trails
      • Somerset Trails
    • Stone Index >
      • Stone Index A-B >
        • Abbotsbury Ironstone
        • Bath Stone
        • Beer Stone
        • Bembridge Stone
        • Binstead Stone
        • Blue Lias Stone
        • Bridport Sandstone
        • Broken Shell Limestone
        • Burr
        • Burton Limestone
      • Stone Index C-E >
        • Caen Stone
        • Carstone
        • Chert
        • Chilmark Lower Building Stone
        • Chilmark Main Building Stone
        • Chilmark Stone
        • Chilmark Upper Buiding Stone
        • Clavellata Beds
        • Cliff Stone
        • Clunch
        • Corallian
        • Cornbrash
        • Cypris Freestone
      • Stone Index F-O >
        • Featherbed Limestone
        • Featherstone
        • Forest Marble
        • Flint
        • Fuller's Earth Rock
        • Grey Chalk
        • Ham Hill Stone
        • Heathstone
        • Inferior Oolite
        • Ironstone
        • Lower Chalk
        • Lower Lias
        • Melbury Sandstone
        • Middle Chalk
        • Middle Lias
        • New Vein
        • Osmington Oolite
      • Stone Index P-T >
        • Portland Cherty Beds
        • Portland Cherty Series
        • Portland Stone
        • Purbeck Marble
        • Purbeck Stone
        • Quarr Stone
        • Rag
        • Sarsen Stone
        • Shaftesbury Sandstone
        • Sherborne Stone
        • Tisbury Stone
        • Todber Freestone
        • Trigonia Beds
      • Stone Index U-Z >
        • Upper Chalk
        • Wardour Lower Building Stone
        • Wardour Main Building Stone
        • Weald Clay
        • White Chalk
        • White Lias
        • Yeovil Stone
  • Churches
    • A-Z of Churches
    • East Dorset >
      • Almer
      • Bournemouth >
        • Talbot Village
      • Canford Magna Chapel
      • Corfe Mullen
      • Christchurch Priory
      • Cranborne
      • Edmondsham
      • Gussage All Saints
      • Gussage St. Andrew
      • Hampreston
      • Kinson
      • Knowlton
      • Morden
      • Pamphill
      • Poole St.James
      • Poole, the Spire Church
      • Shapwick
      • Sturminster Marshall
      • Tarrant Crawford
      • Tarrant Keyneston
      • West Parley
      • Wimborne St.Giles
      • Wimborne Minster Exterior Tour
      • Wimborne Minster Interior
      • Wimborne Minster: Purbeck Marble and Decorative Stone
    • Central Dorset >
      • Bloxworth
      • Bradford Peverell
      • Cerne Abbas
      • Hilton
      • Lytchett Matravers
      • Stratton
      • The Piddle Valley >
        • Affpuddle
        • Alton Pancras
        • Bere Regis
        • Piddlehinton
        • Piddletrenthide
        • Puddletown
        • Tolpuddle
      • Winterborne Tomson
    • North Dorset >
      • Batcombe
      • Belchalwell
      • Blandford Parish Church
      • Blandford St. Leonard's Chapel
      • Blandford St. Mary
      • Blandford Cemetery Chapels
      • Bradford Abbas
      • Chetnole
      • Child Okeford
      • Compton Abbas
      • Farnham
      • Folke
      • Gillingham
      • Hammoon
      • Hazelbury Bryan
      • Holnest
      • Ibberton
      • Iwerne Minster
      • Langton Long
      • Leigh
      • Mappowder
      • Margaret Marsh
      • Marnhull
      • Melbury Abbas
      • Melbury Bubb
      • Pimperne
      • Okeford Fitzpaine
      • Purse Caundle
      • Ryme Intrinseca
      • Shillingstone
      • Sixpenny Handley
      • Stockwood
      • Stourpaine
      • Tarrant Gunville
      • Tarrant Hinton
      • Tarrant Monkton
      • Tarrant Rushton
      • Todber
      • Winterborne Stickland
      • Winterborne Zelston
      • Woolland
      • Yetminster
    • South Dorset >
      • Abbotsbury
      • Bindon Abbey
      • Church Knowle
      • Coombe Keynes
      • East Holme
      • Kingston
      • Martinstown
      • Moreton
      • Portesham
      • Portland: Reforne
      • Steeple
      • Stinsford
      • Studland
      • Swanage
      • Upwey
      • Wareham St. Martin-on-the Walls
      • Wareham St.Mary >
        • St. Martin's-on-the-walls
      • Winterborne Came
      • Winterborne Steepleton
      • Wool
      • Worth Matravers
    • West Dorset >
      • Beaminster
      • Bothenhampton
      • Bradpole
      • Bridport
      • Broadwindsor
      • Burton Bradstock
      • Burstock
      • Catherston Leweston
      • Chelborough
      • Evershot
      • Eype
      • Loders
      • Monkton Wyld
      • Netherbury
      • North Poorton
      • Powerstock
      • St. Gabriel’s
      • Shipton Gorge
      • Lulworth Castle
      • Stoke Abbott
      • Symondsbury
      • Wootton Fitzpaine
      • Whitchurch Canonicorum
  • Quarries , Pits and Limekilns
    • Active Quarries
    • Abbotsbury area
    • Beacon Limestone Quarries
    • Inferior Oolite
    • North Dorset Corallian
    • Kimmeridge Bay
    • Portesham
    • Portland near Swanage
    • Purbeck near Swanage
    • Shaftesbury Sandstone
    • Uplyme Quarries
    • Upwey
    • Whiteway Hill Quarry
    • Winspit Quarry
    • Non-Dorset Quarries and Pits
  • Secular buildings
    • Athelhampton House
    • Blandford Town Hall
    • Cerne Abbas (village and Abbey)
    • Durweston Bridge
    • Ibberton Village
    • Kimmeridge Bay
    • Moignes Court
    • Non-Dorset Buildings
  • Search
  • Contact Us