Record ID: HESH-6ECAE1
Object type: SLAG
Broad period: POST MEDIEVAL
County: Staffordshire
Workflow stage: Awaiting validation
An assemblage of seven fragments of industrial waste including two fragments of burnt limestone and five pieces of ironworking slag. Metal working waste is difficult to date and could be Bronze Age through to post medieval date, although this assemblage is most likely to be post medieval in date (c.1700 - 1900 AD). The pieces range in size and weight with the heaviest fragment weighing 71.5 grams and the lightest fragment weighing 7 grams. The variety of waste suggests the assemblage represents the different types of slag to be recovered from an iron working furnace, with heavier piec…
Created on: Monday 17th March 2014
Last updated: Friday 23rd May 2014
Spatial data recorded. This findspot is known as 'Wombourne', grid reference and parish protected.

Record ID: SUSS-3476B5
Object type: SLAG
Broad period: POST MEDIEVAL
County: East Sussex
Workflow stage: Awaiting validation
One piece of glass slag, possibly from iron working or other related type of industrial activity, probably dating from the Post Medieval to Modern period (c. 1500-1900 AD). The glass is of a dark green material and has many irregular facets.
Created on: Friday 14th March 2014
Last updated: Friday 14th March 2014
Spatial data recorded.

Record ID: HAMP-7A8890
Object type: SLAG
Broad period: UNKNOWN
County: Hampshire
Workflow stage: Awaiting validation
An lump of copper alloy slag, Bronze Age to Post-Medieval in date (c.2000 BC - AD 1800). Measures 34.3x29.3x12.5mm and weighs 26.2g. The surface is characetrised by lumps and hollows.
Created on: Tuesday 28th January 2014
Last updated: Wednesday 29th January 2014
Spatial data recorded.

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Record ID: NMS-D27967
Object type: SLAG
Broad period: UNKNOWN
County: Norfolk
Workflow stage: Awaiting validation
Piece of undated iron smelting slag. Weighs 90g.
Created on: Monday 20th January 2014
Last updated: Wednesday 29th January 2014
Spatial data recorded.

Record ID: KENT-628855
Object type: SLAG
Broad period: UNKNOWN
County: Kent
Workflow stage: Awaiting validation
Fragment of metal working waste, Bloomery slag of unknown date.
Created on: Friday 15th November 2013
Last updated: Thursday 9th January 2014
Spatial data recorded. This findspot is known as 'Great Chart', grid reference and parish protected.

Record ID: CAM-26DD06
Object type: SLAG
Broad period: UNKNOWN
County: Cambridgeshire
Workflow stage: Awaiting validation
Fragment of silver with one curved edge and the other edges rough, flat on both sides. Its shaped suggests that it is a bloom from a crucible. L.: 37.4mm W.: 28.4mm Thickness: 6.9mm Wt.: 27.05g Date: probably ancient, possibly Roman. The weight corresponds to almost exactly a Roman uncia, i.e. one-twelfth of a Roman pound (327.45g), and it must be considered a possibility that this is not coincidental. Note: Roman coins and pottery have been found in the same field. Note: this item is made substantially of silver and is more than 300 years old, and thus qualifies as treasure…
Created on: Thursday 31st October 2013
Last updated: Wednesday 3rd September 2014
Spatial data recorded.

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Record ID: NMS-4CC600
Object type: SLAG
Broad period: UNKNOWN
County: Norfolk
Workflow stage: Awaiting validation
Transect 5/6. Undated fragment of slag with copper and iron corrosion on the surface.
Created on: Tuesday 28th May 2013
Last updated: Tuesday 28th May 2013
Spatial data recorded.

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Record ID: NMS-C716D1
Object type: SLAG
Broad period: POST MEDIEVAL
County: Norfolk
Workflow stage: Awaiting validation
Fragment of iron working slag. 24.5g. Probably post-medieval.
Created on: Friday 22nd March 2013
Last updated: Wednesday 30th June 2021
Spatial data recorded. This findspot is known as 'Billingford', grid reference and parish protected.

Record ID: WMID-99F6B4
Object type: SLAG
Broad period: IRON AGE
County: Warwickshire
Workflow stage: Awaiting validation
Three irregular fragments of iron bloomery waste (slag) or fuel ash, of Iron Age to Late Medieval dating (800 BC to AD 1600). All three fragments are light for their size, which would suggest that minimal iron metal is present within the matrix. All have a honeycomb structure, formed of solidified air bubbles. The measurements are as follows: 1: Length: 24.53 mm. Width: 23.04 mm. Thickness: 15.25 mm. Weight: 3.8 g. 2: Length: 50.57 mm. Width; 31.64 mm. Thickness: 21.75 mm. Weight: 10.1 g. 3: Length: 31.00 mm. Width: 25.66 mm. Thickness: 19.56 mm. Weight: 11.7 g. All together t…
Created on: Thursday 13th December 2012
Last updated: Friday 22nd March 2013
Spatial data recorded.

Record ID: HESH-73E3A1
Object type: SLAG
Broad period: POST MEDIEVAL
County: County of Herefordshire
Workflow stage: Awaiting validation
Six pieces of slag of probable late post medieval or modern date 1700 - 1850. The assemblage - all collected from one field represent evidence of industrial processing nearby. Four of the pieces are non-ferrous, one is glass related and the other has large amounts of iron within its matrix. The largest pieces are all very light, having an oxidised skin on one face that is a mid yellowish brown colour, whilst the interior surfaces have glass like aerated slaggy deposits. The ferrous waste is much heavier with an irregular grey coloured surface. The glass slag has an even blue colour wh…
Created on: Monday 17th September 2012
Last updated: Monday 30th July 2018
Spatial data recorded. This findspot is known as 'Kings Caple', grid reference and parish protected.

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Record ID: NMS-499937
Object type: SLAG
Broad period: IRON AGE
County: Norfolk
Workflow stage: Awaiting validation
Iron slag fragment. Maximum thickness 52 mm. Iron Age - Post-medieval.
Created on: Wednesday 22nd August 2012
Last updated: Monday 22nd April 2013
Spatial data recorded. This findspot is known as 'Dickleburgh and Rushall', grid reference and parish protected.

Record ID: PUBLIC-ADF947
Object type: SLAG
Broad period: IRON AGE
County: Lincolnshire
Workflow stage: Awaiting validation
A large fragment of Iron bloomery slag. The fragment is rich in iron with iron corrosion products over parts of its surfaces. It strongly attracts a magnet. The fragment also contains a large number of air bubbles and is heavy for its size.One side has a distinct, smooth curved profile which may be where the bloom was shaped by the inner wall of the furnace. The process of smelting iron ore to produce iron has not changed much from the Iron Age to the Medieval period.
Created on: Monday 9th July 2012
Last updated: Thursday 12th July 2012
Spatial data recorded. This findspot is known as 'Skidbrooke', grid reference and parish protected.

Record ID: HESH-F408B8
Object type: SLAG
Broad period: POST MEDIEVAL
Workflow stage: Awaiting validation
Two pieces of glass slag of probable late post medieval or modern date 1700 - 1850. The larger fragment is a mid green colour with white inclusions. In section a clear irregular circular pattern can be seen where the waste product has been removed by stirring the molten mixture. The fragment measures 69.4mm length, 58.0mm width 48.4mm thick and weighs 307.54 grams The smaller fragment is a mid grey black colour with cream stone like inclusions It measures 37.8mm length, 29.1mm width17.6mm thick and weighs 18.0 grams
Created on: Monday 18th June 2012
Last updated: Wednesday 12th September 2012
No spatial data available.

Record ID: SWYOR-858DB8
Object type: SLAG
Broad period: UNKNOWN
County: Doncaster
Workflow stage: Awaiting validation
Seven pieces of slag or industrial waste products of unknown date.
Created on: Friday 13th April 2012
Last updated: Saturday 23rd May 2020
Spatial data recorded.

Record ID: SWYOR-850948
Object type: SLAG
Broad period: UNKNOWN
County: Doncaster
Workflow stage: Awaiting validation
Two pieces of industrial waste, one is tap slag and the other is ferrous with an embedded lump of another material. Date unknown.
Created on: Friday 13th April 2012
Last updated: Saturday 23rd May 2020
Spatial data recorded.

Record ID: SOM-751EA5
Object type: SLAG
Broad period: POST MEDIEVAL
County: Somerset
Workflow stage: Awaiting validation
Piece of waste material from a high temperature refractory furnace. The piece is silica which has poured from the furnace at a very high temperature. The surface has cooled rapidly into a glass like material while the inner has cooled more slowly to a opaque white material, thought to be high in silica. The surface material is opaque olive green. It weighs 60 grams. John Allen has examined this piece and suggested it may be a refractory or ball clay in the centre. While pottery wasters have been found from the site this is evidence of a much higher temperature and modern industry an…
Created on: Wednesday 7th March 2012
Last updated: Saturday 10th March 2012
Spatial data recorded.

Record ID: SWYOR-CA5814
Object type: SLAG
Broad period: UNKNOWN
County: Lincolnshire
Workflow stage: Awaiting validation
Three pieces of metalworking slag; waste material from metal working. It reacts slightly to a magnet. Most of the surfaces are rough, blistered and black with some orange throughout. A portion of the large piece is dark grey and slightly "blobby" where the liquid material has solidified in drops and layers. Parts of this billowed material have a dull shine. Together, the pieces weigh 61.84 grams.
Created on: Tuesday 28th February 2012
Last updated: Tuesday 28th February 2012
Spatial data recorded.

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Record ID: HESH-3BA075
Object type: SLAG
Broad period: MODERN
County: County of Herefordshire
Workflow stage: Awaiting validation
Eleven (11) pieces of early industrial slag - most probably not more than 300 years old possibly associated with glass making. All (bar one small piece) are non-ferrous. Bulk weight: 473.5 grams
Created on: Tuesday 21st February 2012
Last updated: Monday 2nd March 2020
Spatial data recorded.

Record ID: SWYOR-3745E8
Object type: SLAG
Broad period: POST MEDIEVAL
County: Derbyshire
Workflow stage: Awaiting validation
A piece of metalworking slag of unknown date. Light-weight, magnetised and slightly convex piece of slag, possibly part of a crucible, or maybe cinder slag. The material is pale grey in the centre; one surface is blackened and the other surface is dark brown in colour; it has a rough and pitted surface, glossy in places, with a purple sheen. Compare NSC Box 008 and NSC Box 032C in the National Slag Collection. Slag is very difficult to date but it is important as evidence of metalworking. This is likely to be Post Medieval to Modern in date. Length: 38.1mm; Width: 50.6mm; Thickness:…
Created on: Tuesday 21st February 2012
Last updated: Friday 24th February 2012
Spatial data recorded.

Record ID: SWYOR-26DAE7
Object type: SLAG
Broad period: UNKNOWN
County: Doncaster
Workflow stage: Awaiting validation
A piece of tap slag of uncertain date from Roman to Post Medieval. It is dense, magnetic and black to purple in colour. It forms a thick plate which is rough and irregular on the lower face, with characteristic runs of solidified molten metal across the top face. This piece is just one small example of the many pieces recovered from the same place. Tap-slag is slag that is 'tapped' from a bloomery furnace. This is carried out during smelting so as to allow the long continuance of the operation. It cools to a solid slag with marked flow lines. There were fewer bloomeries after the…
Created on: Monday 20th February 2012
Last updated: Sunday 24th May 2020
Spatial data recorded.