Record ID: WMID-A7E595
Object type: SLAG
Broad period: IRON AGE
County: Warwickshire
Workflow stage: Awaiting validation
A fragment of Iron bloomery slag. The fragment measures 26.15mm long by 26.04mm wide by 21.74mm thick. It weighs 13.9g. The Iron rich slag exhibits a number of air bubbles and resembles vitrified clay. The process of smelting iron ore to produce iron has not changed much from the Iron Age to the Medieval period.
Created on: Tuesday 16th February 2010
Last updated: Wednesday 1st August 2012
Spatial data recorded. This findspot is known as 'Brailes', grid reference and parish protected.

Record ID: WMID-A7CD98
Object type: SLAG
Broad period: IRON AGE
County: Warwickshire
Workflow stage: Awaiting validation
A fragment of Iron bloomery slag. The fragment measures 35.12mm long by 29.00mm wide by 17.21mm thick. It weighs 26.5g. The Iron rich slag exhibits a large number of air bubbles and is relatively heavy in relation to its size. The process of smelting iron ore to produce iron has not changed much from the Iron Age to the Medieval period.
Created on: Tuesday 16th February 2010
Last updated: Wednesday 1st August 2012
Spatial data recorded. This findspot is known as 'Brailes', grid reference and parish protected.

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Record ID: SUSS-812824
Object type: SLAG
Broad period: ROMAN
County: The City of Brighton and Hove
Workflow stage: Awaiting validation
Iron smithing slag. Sample from a much larger deposit of large broken pieces. Probably Roman based on associated material. 26.70 grams.
Created on: Tuesday 2nd February 2010
Last updated: Thursday 24th February 2011
Spatial data recorded.

Record ID: WMID-5D0705
Object type: SLAG
Broad period: IRON AGE
County: Warwickshire
Workflow stage: Awaiting validation
A fragment of Iron bloomery slag. The fragment measures 43.74mm long by 37.66mm wide by 22.40mm thick. It weighs 23.0g. It consists mainly of highly fired or vitrified clay, with a small amount of iron rich slag bonded to the surface. The Iron rich slag exhibits air bubbles and has a smooth, almost glass like surface. The process of smelting iron ore to produce iron has not changed much from the Iron Age to the Medieval period.
Created on: Tuesday 19th January 2010
Last updated: Wednesday 1st August 2012
Spatial data recorded. This findspot is known as 'Brailes', grid reference and parish protected.

Record ID: DENO-B173C2
Object type: SLAG
Broad period: IRON AGE
County: Derbyshire
Workflow stage: Awaiting validation
Sub-circular lump of slag (probably). Grey matrix containing numerous porous iron rich spheres (diameter range 3mm-8mm) each with an outer orange shell (prseumbably due to oxidisation); some white quartz sands also in the matrix. Unknown date and method of production. Length 63mm, width 39mm, weight 68.8mm.
Created on: Friday 30th October 2009
Last updated: Wednesday 12th June 2019
Spatial data recorded.

Record ID: BERK-80BA98
Object type: SLAG
Broad period: ROMAN
County: Oxfordshire
Workflow stage: Awaiting validation
A lump of lead cast-off from the manufacturing process. This material would have been removed from the surface of the molten metal, where the impurities rise during manufacturing. Although difficult to date, it is suggested that this slag could date from the Roman to Medieval periods. The slag fragment weighs 111 gms.
Created on: Thursday 4th December 2008
Last updated: Thursday 24th February 2011
Spatial data recorded. This findspot is known as 'Banbury', grid reference and parish protected.

Record ID: LANCUM-A45AA7
Object type: SLAG
Broad period: MEDIEVAL
County: Cheshire West and Chester
Workflow stage: Awaiting validation
Possibly a small piece of metalworking debris/casting waste probably dating from the later medieval or post-medieval period. Contains tin or tin-alloy.
Created on: Thursday 19th June 2008
Last updated: Thursday 24th February 2011
Spatial data recorded. This findspot is known as 'Chester', grid reference and parish protected.

Record ID: NCL-997952
Object type: SLAG
Broad period: ROMAN
County: Northumberland
Workflow stage: Awaiting validation
Piece of lead casting waste, probably of Roman date. The object in plan is roughly rectangular with one end that is widened and relatively flat. Possibly waste from casting a vessle foot.
Created on: Thursday 1st May 2008
Last updated: Thursday 8th September 2011
Spatial data recorded.

Record ID: NCL-9906F2
Object type: SLAG
Broad period: ROMAN
County: Northumberland
Workflow stage: Awaiting validation
Large piece of lead casting waste, probably of Roman date. The object in plan is roughly half of a circle with a thickening along the outer curved edge so that in section it is wedge shaped. One surface is relatively even in texture and may represent an impression from a ceramic crucible. Therefore this object may be waste from lead processing removed from a crucible or mould.
Created on: Thursday 1st May 2008
Last updated: Thursday 8th September 2011
Spatial data recorded.

Record ID: SOM-9BA9F5
Object type: SLAG
Broad period: UNKNOWN
County: Somerset
Workflow stage: Awaiting validation
A piece of slag. Dimensions: 60mm by 52mm by 46mm Weight: 291g
Created on: Saturday 1st March 2008
Last updated: Monday 28th June 2021
Spatial data recorded. This findspot is known as 'Mells', grid reference and parish protected.

Record ID: KENT-5201B2
Object type: SLAG
Broad period: MEDIEVAL
County: Kent
Workflow stage: Awaiting validation
Eight fragments of copper alloy slag or casting waste.
Created on: Friday 29th June 2007
Last updated: Thursday 24th February 2011
Spatial data recorded.

Record ID: NCL-906097
Object type: SLAG
Broad period: UNKNOWN
County: Darlington
Workflow stage: Awaiting validation
The object is a piece of slag of uncertain date. More specifically, this object is tap slag; it was formed during the smelting process when it became necessary to empty the furnace to keep the channels clear. This slag was removed by tapping the furnace, causing it to run out from a hole at the base of the furnace while it was hot. This forms the characteristic ropey-looking surface. The material is dark grey and dense. There are inclusions showing iron corrosion in the base of the object. Though it is not possible to date this object, it was recorded due its proximity to Dere St…
Created on: Wednesday 20th June 2007
Last updated: Thursday 24th February 2011
Spatial data recorded.

Record ID: NCL-426585
Object type: SLAG
Broad period: ROMAN
County: Northumberland
Workflow stage: Awaiting validation
A piece of slag from metalworking. Probably Roman as it was found in association with two pieces of Roman pottery.
Created on: Monday 4th June 2007
Last updated: Thursday 24th February 2011
Spatial data recorded.

Record ID: DEV-3DEA62
Object type: SLAG
Broad period: UNKNOWN
County: Devon
Workflow stage: Awaiting validation
Two lead alloy fragments of unknown date. The items are possibly fragments of slag. Length: 47.15mm Width: 20.53mm Thickness: 18.13mm Weight: 47.82g Length: 30.95mm Width: 20.68mm Thickness: 10.47mm Weight: 19.39g
Created on: Monday 4th June 2007
Last updated: Thursday 24th February 2011
Spatial data recorded. This findspot is known as 'Talaton CP', grid reference and parish protected.

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Record ID: SUSS-467328
Object type: SLAG
Broad period: ROMAN
County: West Sussex
Workflow stage: Awaiting validation
Two fragments of vitrified iron slag.
Created on: Wednesday 23rd May 2007
Last updated: Thursday 24th February 2011
Spatial data recorded. This findspot is known as 'Slindon', grid reference and parish protected.

Record ID: NCL-B70A27
Object type: SLAG
Broad period: ROMAN
County: County Durham
Workflow stage: Awaiting validation
This tap slag is dark grey in colour. There is a smooth maroon coating on the upper surface. This is broken up by a few small bubbles and rivulets. The texture indicates directionality of flow.
Created on: Tuesday 10th April 2007
Last updated: Thursday 24th February 2011
Spatial data recorded.

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Record ID: WILT-18BB23
Object type: SLAG
Broad period: UNKNOWN
County: Wiltshire
Workflow stage: Awaiting validation
Probable piece of iron slag, undatable. Measures 28.6x17.9x12mm and weighs 8.86g. There is a break at one end. Otherwise the slag has several rounds and hollows/ holes.
Created on: Friday 9th March 2007
Last updated: Thursday 24th February 2011
Spatial data recorded.

Record ID: KENT-426BF3
Object type: SLAG
Broad period: IRON AGE
County: Kent
Workflow stage: Awaiting validation
A section of tapped iron slag, measuring 85.99mm in length, 57.20mm wide and 26.07mm thick.
Created on: Thursday 15th February 2007
Last updated: Friday 18th March 2011
No spatial data available.

Record ID: SOMDOR-264CD5
Object type: SLAG
Broad period: ROMAN
County: Somerset
Workflow stage: Awaiting validation
A single lump of lead tap slag or run off from melting/casting lead found in association with a large quantity of Roman pottery. This may indicate the positon of a building. The object is long and sinuous, measuring 71.29mm x 14.16mm x 4.03mm, and weighing 29.69g.
Created on: Monday 8th January 2007
Last updated: Thursday 24th February 2011
Spatial data recorded. This findspot is known as 'Westbury Sub Mendip', grid reference and parish protected.

Record ID: SUSS-9FAB35
Object type: SLAG
Broad period: ROMAN
County: East Sussex
Workflow stage: Awaiting validation
A fragment of tap slag, a by product of iron smelting. Roman to medieval in date.
Created on: Tuesday 14th November 2006
Last updated: Thursday 24th February 2011
Spatial data recorded. This findspot is known as 'Hurst Green', grid reference and parish protected.

Record ID: SUSS-9FA0F4
Object type: SLAG
Broad period: ROMAN
County: East Sussex
Workflow stage: Awaiting validation
A fragment of tap slag, a by product of iron smelting. Roman ro medieval in date.
Created on: Tuesday 14th November 2006
Last updated: Thursday 24th February 2011
Spatial data recorded. This findspot is known as 'Hurst Green', grid reference and parish protected.

Record ID: SUSS-9F9951
Object type: SLAG
Broad period: MEDIEVAL
County: East Sussex
Workflow stage: Awaiting validation
A fragment of blast furnace slag, circa 16th -18th century
Created on: Tuesday 14th November 2006
Last updated: Thursday 24th February 2011
Spatial data recorded. This findspot is known as 'BODIAM', grid reference and parish protected.

Record ID: SUSS-9F8683
Object type: SLAG
Broad period: MEDIEVAL
County: East Sussex
Workflow stage: Awaiting validation
A fragment of blast furnace slag, circa 16th -18th century
Created on: Tuesday 14th November 2006
Last updated: Thursday 24th February 2011
Spatial data recorded. This findspot is known as 'BODIAM', grid reference and parish protected.

Record ID: BERK-B83264
Object type: SLAG
Broad period: UNKNOWN
County: Oxfordshire
Workflow stage: Awaiting validation
Two pieces of iron metalworking slag of unknown date Dimensions: weight 96.16g
Created on: Friday 3rd November 2006
Last updated: Thursday 24th February 2011
Spatial data recorded. This findspot is known as 'Marcham', grid reference and parish protected.

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Record ID: NCL-B48B08
Object type: SLAG
Broad period: UNKNOWN
County: Northumberland
Workflow stage: Awaiting validation
An undated globule of argentiferous lead slag of unknown date. One side is relatively flat, suggesting the slag solidified on a flat surface. The overall shape is amorphous. Numerous circular corrosive copper alloy spots are found evenly on the surface, suggesting deposition next to a copper-alloy object. Two broken edges reveal a clean/pure lead interior with no air bubbles.
Created on: Thursday 10th August 2006
Last updated: Thursday 24th February 2011
Spatial data recorded. This findspot is known as 'Field 6', grid reference and parish protected.

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Record ID: NCL-005396
Object type: SLAG
Broad period: ROMAN
County: Northumberland
Workflow stage: Awaiting validation
A very large lump of slag with solidified waste metal of varying quality. It is roughly 170mm in length and egg-shaped. It weighs over 1kg. The object was found in association with Roman pottery that had been exposed and deposited on the ground when a north facing enbankment slumped in the vicinity of Housesteads Roman fort.
Created on: Wednesday 14th June 2006
Last updated: Thursday 24th February 2011
Spatial data recorded.

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Record ID: NCL-63F8C6
Object type: SLAG
Broad period: ROMAN
County: Northumberland
Workflow stage: Awaiting validation
A lump of slag foung just outside the standing remains of a vicus building 10 meteres south of Housesteads Roman fort. The slag was found near another large lump (1kg+) of slag approximately 2 meters away. Both lumps of slag were found near rabbit burrows.
Created on: Wednesday 19th April 2006
Last updated: Thursday 24th February 2011
Spatial data recorded.

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Record ID: DEV-D1E832
Object type: SLAG
Broad period: UNKNOWN
County: Devon
Workflow stage: Awaiting validation
Lump of tap slag, containing lots of air bubbles, but with characteristic 'flow' on the bottom of the object. The slag is quite light in weight, in comparison to Forest of Dean tap slag, with which the identifier is more familiar.
Created on: Friday 31st March 2006
Last updated: Thursday 11th January 2018
Spatial data recorded.

Record ID: LEIC-F870D2
Object type: SLAG
Broad period: UNKNOWN
County: Rutland
Workflow stage: Awaiting validation
Large mass of undated copper alloy and slag, 100mm long and 75mm wide. The object weighs 285 grams and consists of pieces of slag mixed together with spilled molten metal.
Created on: Tuesday 31st January 2006
Last updated: Thursday 24th February 2011
Spatial data recorded. This findspot is known as 'brooke', grid reference and parish protected.

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Record ID: SOMDOR-ED8187
Object type: SLAG
Broad period: UNKNOWN
County: Dorset
Workflow stage: Published
4 pieces of copper alloy slag/waste. Probably casting debris.
Created on: Wednesday 7th September 2005
Last updated: Thursday 24th February 2011
Spatial data recorded.

Record ID: CORN-9AE021
Object type: SLAG
Broad period: ROMAN
County: Cornwall
Workflow stage: Awaiting validation
Large fragment of iron tap slag, created as a by-product of iron smelting; bulbous surface and blue-black in colour, reflecting the manganese which replaces the iron in the slag; Roman period or possibly later. We know that the iron ore vein was exploited in this area in the Post-medieval to modern periods, but this is unlikely to be later than 16th century in date, according to expert analysis under XRF at English Heritage.
Created on: Saturday 3rd September 2005
Last updated: Thursday 18th July 2019
Spatial data recorded.

Record ID: CORN-9AD4D6
Object type: SLAG
Broad period: ROMAN
County: Cornwall
Workflow stage: Awaiting validation
Medium-sized fragment of iron tap slag, created as a by-product of iron smelting; smooth, angular surface and blue-black in colour, reflecting the manganese which replaces the iron in the slag; Roman period or possibly later. We know that the iron ore vein was exploited in this area in the Post-medieval to modern periods, but this is unlikely to be later than 16th century in date, according to expert analysis under XRF at English Heritage
Created on: Saturday 3rd September 2005
Last updated: Thursday 18th July 2019
Spatial data recorded.

Record ID: CORN-9A7EC5
Object type: SLAG
Broad period: ROMAN
County: Cornwall
Workflow stage: Awaiting validation
Small fragment of iron tap slag, created as a by-product of iron smelting; smooth, shiny surface and blue-black in colour, reflecting the manganese which replaces the iron in the slag; Roman period or possibly later. We know that the iron ore vein was exploited in this area in the Post-medieval to modern periods, but this is unlikely to be later than 16th century in date, according to expert analysis under XRF at English Heritage.
Created on: Saturday 3rd September 2005
Last updated: Thursday 18th July 2019
Spatial data recorded.

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Record ID: SUSS-0C4000
Object type: SLAG
Broad period: UNKNOWN
County: West Sussex
Workflow stage: Published
A small fragment of glass slag, of unknown date.
Created on: Friday 22nd July 2005
Last updated: Thursday 24th February 2011
Spatial data recorded.

Record ID: BERK-D6DE71
Object type: SLAG
Broad period: UNKNOWN
County: West Berkshire
Workflow stage: Awaiting validation
Two fragments of iron slag from a site that has been dated to the late Bronze Age (1150-800 BC). The main fragment is globular and hollow. The cross section shows layers with orange corrosion present within the layers. The internal surface is glassy and bubbled. The smaller fragment has broken from the larger globular piece. Dimensions: length 220mm; width 170mm; thickness 78mm; weight 7300g
Created on: Monday 13th June 2005
Last updated: Thursday 24th February 2011
Spatial data recorded. This findspot is known as 'Thatcham', grid reference and parish protected.

Record ID: LEIC-59F831
Object type: SLAG
Broad period: IRON AGE
County: Rutland
Workflow stage: Awaiting validation
A large lump of iron slag
Created on: Tuesday 7th June 2005
Last updated: Tuesday 19th December 2017
Spatial data recorded.

Record ID: LEIC-B4EE42
Object type: SLAG
Broad period: UNKNOWN
County: Leicestershire
Workflow stage: Published
Large piece of copper alloy slag recovered.
Created on: Friday 6th May 2005
Last updated: Thursday 24th February 2011
Spatial data recorded.

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Record ID: SUSS-A88342
Object type: SLAG
Broad period: POST MEDIEVAL
County: East Sussex
Workflow stage: Awaiting validation
Five pieces of metal working waste. 1. Weight 21.05g, probably copper alloy. 2. Weight 27.89g, probably copper alloy. 3. Weight 69g, probably copper alloy. 4. Weight 108g, probably copper alloy, contains some charcoal. 5. Weight 58.18g, probably iron. Possibly post medieval, although an earlier prehistoric date cannot be ruled out.
Created on: Monday 11th April 2005
Last updated: Thursday 24th February 2011
Spatial data recorded. This findspot is known as 'Udimore', grid reference and parish protected.

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Record ID: DEV-47E611
Object type: SLAG
Broad period: MEDIEVAL
County: Devon
Workflow stage: Awaiting validation
Small piece of slag. It comes from an area where more has been found and may indicate metal working activity. It was also found where many pot legs and vessel fragments have been recovered. It probably dates from the medieval period.
Created on: Thursday 17th February 2005
Last updated: Thursday 24th February 2011
Spatial data recorded.

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Record ID: DEV-47D810
Object type: SLAG
Broad period: MEDIEVAL
County: Devon
Workflow stage: Awaiting validation
A small piece of copper alloy metal working debris. As it comes from an area where more has been recovered as well as a large number of cast metal vessel fragments, it is likely to date from the medieval period.
Created on: Thursday 17th February 2005
Last updated: Thursday 24th February 2011
Spatial data recorded.